Perhaps you should try some spelling variations:
"tien thanh lap trinh f.c." » "tien thinh lap trinh f.c.", "tran thanh lap trinh f.c.", "den thanh lap trinh f.c.", "tien thanh san trinh f.c.", "tien phan lap trinh f.c.", "tien thanh hai trinh f.c.", "tien thanh lap trinh c.", "tien thanh lap trinh doc.", "tien thanh lap trinh cac."
"thep hanh lam dinh duc." » "them thanh lam dinh duc.", "thuc hanh lam dinh duc.", "thi hanh lam dinh duc.", "thep hanh kem dinh duc.", "thep hanh va dinh duc.", "thep dinh lam dinh duc.", "thep hanh lam tinh duc.", "thep hanh lam linh duc.", "thep hanh tham dinh duc.", "thep hanh lam minh duc.", "thep hanh lam ninh duc."
"thep hinh nam dinh duc." » "thi hinh nam dinh duc.", "tap hinh nam dinh duc.", "phap hinh nam dinh duc.", "thep hinh nam minh duc.", "thep hinh nam ninh duc.", "thep hinh nam tinh duc.", "thep tinh nam dinh duc.", "thep dinh nam dinh duc.", "thep hanh nam dinh duc."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tien thanh lap trinh f.c.") or ((("thep hanh lam dinh duc.") or ("thep hinh nam dinh duc."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tien thanh lap trinh f.c.") OR ((("thep hanh lam dinh duc.") OR ("thep hinh nam dinh duc.")))).
• Removing quotes may allow a broader search: (( tien thanh lap trinh f.c. ) or ((( thep hanh lam dinh duc. ) or ( thep hinh nam dinh duc. )))).
• Adding a wildcard symbol may retrieve word variants: (("tien thanh lap trinh f.c.") or ((("thep hanh lam dinh duc.") or ("thep hinh nam dinh duc."))))*.