Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
thanh tung » thanh cong
cong quang » luong quang, thong quang, duong quang
quang than » quang thanh, quang thang, quang tuan
hoc thieu » toc thieu, hoc hien
nong cong » cong cong, tong cong, nang cong
cua nong » cua cong, cuu nong, cua dong
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu nganh - ((thanh trung) or (thanh tung)) cua nong cong quang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu nganh - ((thanh trung) OR (thanh tung)) cua nong cong quang than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu nganh - ((thanh trung) or (thanh tung)) cua nong cong quang than cap*.