Perhaps you should try some spelling variations:
quang nhung » quang hung, quan nhung, quang phuong
doanh tran » doanh tren, doanh thanh, doanh trong
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
nhanh cay » nhanh ha, nhanh va, hanh cac
nhanh bac » nhanh ha, nhanh va
hoc hieu » hoc thieu, hoc hien, doc hieu
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: hoc hieu lang - doanh tran quang nhung cong tan ((nhanh cay) or (nhanh bac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu lang - doanh tran quang nhung cong tan ((nhanh cay) OR (nhanh bac)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - doanh tran quang nhung cong tan ((nhanh cay) or (nhanh bac))*.