Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hanh tram » hanh tam, hanh trang, thanh tran
van nhung » van nhuong, va nhung, van hung
doc hieu » toc thieu, hoc hien
tram van » tran van, tam van, trang van
san than » sang than, san thanh, van than
ban than » ban thanh, van thanh, ban hang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) nganh - hanh tram van nhung cong ((san than) OR (ban than)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) nganh - hanh tram van nhung cong ((san than) OR (ban than)) cao~".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) nganh - hanh tram van nhung cong ((san than) OR (ban than)) cao*.