Perhaps you should try some spelling variations:
trinh cong » trinh dung
chau tinh » cuu tinh, ha tinh, cua tinh
sinh qua » sinh quan, tinh quan, trinh qua
sinh cua » manh cua, dinh cuu, sinh va
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, tran bai
toan ban » van ban
ho chau » ha chau, ho chu, o chau

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

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