Perhaps you should try some spelling variations:
hoang cong » hang cong, hoang long, hoang vuong
trong van » trong cac
chu tinh » chau tinh, chua tinh, cuu tinh
tram van » tran van, tam van, trang van
cong tac » cong ty
phan tap » han tap, pha tap, phan tu
phan lap » phan dau
hoi chu » hoi chuc

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)) hoang cong tac ((phan tap) OR (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - hanh ((tram van) OR (trong van)) hoang cong tac ((phan tap) OR (phan lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi chu tinh - hanh ((tram van) or (trong van)) hoang cong tac ((phan tap) OR (phan lap))".
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh ((tram van) or (trong van)) hoang cong tac ((phan tap) OR (phan lap))*.