Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
nhung cong » dung cong, thong cong, hang cong
trang va » tran van, hang va
lang van » dang van, tang van, hoang van
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu nganh - hanh ((trang va) or (lang van)) nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu nganh - hanh ((trang va) OR (lang van)) nhung cong dan chan cau*.