Perhaps you should try some spelling variations:
trong van » trong cac
hang cong » dang cong, hang nong, bang cong
chu tinh » chau tinh, chua tinh, cuu tinh
tram van » tran van, tam van, trang van
cong tac » cong ty
hoi chu » hoi chuc
tac pha » tac pham, tac phat, tac ha
pha tap » pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu tinh - hanh ((tram van) or (trong van)) hang cong tac pha tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - hanh ((tram van) OR (trong van)) hang cong tac pha tap.
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh ((tram van) or (trong van)) hang cong tac pha tap*.