Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
tranh hang » trinh han, tran hoang, tran hong
hang hoang » dang hoang, hang hang, khung hoang
lang cong » bang cong, hang cong, lang dong
dang cong » dung cong
san phan » san pham, van phan, sat phan

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 - tranh hang hoang ((lang cong) or (dang cong)) san phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu nganh - tranh hang hoang ((lang cong) OR (dang cong)) san phan tu*.