Perhaps you should try some spelling variations:
"thien ban lam sinh hoc." » "thien bang lam sinh hoc.", "thien van lam sinh hoc.", "phien ban lam sinh hoc.", "thien ban lam tinh hoc.", "thien ban tam sinh hoc.", "thien ban lam linh hoc.", "thien ban ham sinh hoc."
"thep xanh lam tin hoc." » "heo xanh lam tin hoc.", "thep bang lam tin hoc.", "thep hinh lam tin hoc.", "thep hanh lam tin hoc.", "thep dinh lam tin hoc.", "thep xanh a tin hoc.", "thep xanh lam tinh hoc.", "thep xanh lam tan hoc.", "thep xanh luat tin hoc."
"thuc hanh ha tinh f.c." » "thuc hanh ha tinh hoc.", "thuc hanh ha tinh bac.", "thuc hanh ha tinh duc.", "thuc nhanh ha tinh f.c.", "thuc thanh ha tinh f.c.", "thuc hanh hoa tinh f.c.", "thuc hanh va tinh f.c.", "thuc hanh may tinh f.c.", "thu hanh ha tinh f.c."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("thuc hanh ha tinh f.c.") or ((("thep xanh lam tin hoc.") or ("thien ban lam sinh hoc."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thuc hanh ha tinh f.c.") OR ((("thep xanh lam tin hoc.") OR ("thien ban lam sinh hoc.")))).
• Removing quotes may allow a broader search: (( thuc hanh ha tinh f.c. ) or ((( thep xanh lam tin hoc. ) or ( thien ban lam sinh hoc. )))).
• Adding a wildcard symbol may retrieve word variants: (("thuc hanh ha tinh f.c.") or ((("thep xanh lam tin hoc.") or ("thien ban lam sinh hoc."))))*.