Perhaps you should try some spelling variations:
trinh ven » trinh van, trinh den, tinh ven
tong cong » trong cong, cong cong, dung cong
thanh cac » hanh cac, thanh bac, tranh cac
cua tinh » cua sinh, va tinh, ha tinh
trinh ve » trinh he, trinh va, trinh vi
cong san » cong tac
thanh ca » thanh cha, thanh ha, thanh va
moc cua » hoc cua, moi cua, doc cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: moc cua tinh - canh ((trinh ve) or (trinh ven)) tong cong san ((thanh cac) or (thanh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moc cua tinh - canh ((trinh ve) OR (trinh ven)) tong cong san ((thanh cac) OR (thanh ca)).
• Adding a wildcard symbol may retrieve word variants: moc cua tinh - canh ((trinh ve) or (trinh ven)) tong cong san ((thanh cac) or (thanh ca))*.