Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh cao » thanh ca, thanh cac, thanh thao
chao chu » cho chu, cua chu, cao cho
chu sang » chu bang, thu sang, chieu sang
trung ha » trung hoc, trung tam, trung cap
trang va » hang va
tran van » luan van
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu sang - thanh ((trung ha) or (((trang va) or (tran van)))) nhung cong tan thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu sang - thanh ((trung ha) OR (((trang va) OR (tran van)))) nhung cong tan thanh cao.
• Adding a wildcard symbol may retrieve word variants: chao chu sang - thanh ((trung ha) or (((trang va) or (tran van)))) nhung cong tan thanh cao*.