Perhaps you should try some spelling variations:
"thep dinh cam tienh f.c." » "thep hinh cam tienh f.c.", "tham dinh cam tienh f.c.", "hiep dinh cam tienh f.c.", "thep dinh cam tien f.c.", "thep dinh cam tinh f.c.", "thep dinh cam bien f.c.", "thep dinh lam tienh f.c.", "thep dinh cac tienh f.c.", "thep dinh nam tienh f.c."
"phap hinh lam tinh duc." » "phap sinh lam tinh duc.", "phap tinh lam tinh duc.", "phap dinh lam tinh duc.", "phap hanh lam tinh duc.", "phap hinh may tinh duc.", "phap hinh ha tinh duc.", "phap hinh ban tinh duc.", "phap hinh lam minh duc.", "phap hinh lam dinh duc.", "phap hinh lam ninh duc.", "phap hinh lam tanh duc.", "phap hinh luat tinh duc.", "phap hinh cam tienh duc."
"thep bang lam tin hoc." » "thien bang lam tin hoc.", "thai bang lam tin hoc.", "te bang lam tin hoc.", "thep mang lam tin hoc.", "thep nang lam tin hoc.", "thep quang lam tin hoc.", "thep bang lam tan hoc.", "thep bang luat tin hoc.", "thep bang cam tien hoc.", "thep bang lam sinh hoc."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("thep dinh cam tienh f.c.") or ("phap hinh lam tinh duc."))) or ("thep bang lam tin hoc."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thep dinh cam tienh f.c.") OR ("phap hinh lam tinh duc."))) OR ("thep bang lam tin hoc.")).
• Removing quotes may allow a broader search: (((( thep dinh cam tienh f.c. ) or ( phap hinh lam tinh duc. ))) or ( thep bang lam tin hoc. )).
• Adding a wildcard symbol may retrieve word variants: (((("thep dinh cam tienh f.c.") or ("phap hinh lam tinh duc."))) or ("thep bang lam tin hoc."))*.