Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
tran chau » tranh chap, tran huu
hoc tran » hoc tan, hoc tren, boc tran
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tran thanh - hanh trinh cua nhung ((cong tan) or (cong san)) ((toan cau) or (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tran thanh - hanh trinh cua nhung ((cong tan) OR (cong san)) ((toan cau) OR (tran chau)).
• Adding a wildcard symbol may retrieve word variants: hoc tran thanh - hanh trinh cua nhung ((cong tan) or (cong san)) ((toan cau) or (tran chau))*.