Perhaps you should try some spelling variations:
trinh cua » tinh cua, trinh quan, trinh luan
tran chau » tranh chap, tran huu
chi tach » chiu trach, chiet tach, chi thanh
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
tran cau » toan cau, ran cau, tra cau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tach - hanh ((trinh cua) or (trinh luat)) ban cong tan ((tran cau) OR (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - hanh ((trinh cua) OR (trinh luat)) ban cong tan ((tran cau) OR (tran chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi tach - hanh ((trinh cua) or (trinh luat)) ban cong tan ((tran cau) OR (tran chau))".
• Adding a wildcard symbol may retrieve word variants: doi chi tach - hanh ((trinh cua) or (trinh luat)) ban cong tan ((tran cau) OR (tran chau))*.