Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
hieu lang » chieu sang, hieu quang, nhieu tang
tac trien » tac tren, tac truyen, tac tuyen
trien cay » tren cay, trien cac, trien cam
quan ban » quang ban, qua ban, quan van
cong tac » cong ty
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh chinh ((quan ban) or (quang tuan)) cong tac trien cay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh chinh ((quan ban) OR (quang tuan)) cong tac trien cay.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh chinh ((quan ban) or (quang tuan)) cong tac trien cay*.