Perhaps you should try some spelling variations:
thanh thuong » thanh chuong, thanh phuong, khanh thuong
thanh huong » thanh hung, thanh cong, anh huong
hoc thieu » toc thieu
dung cong » dung trong
mai dung » mai hung, mai huong, manh dung
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cao » toan cao, thai cao, than cap

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) or (hoc hien)) xanh - ((thanh thuong) OR (thanh huong)) mai dung cong ban than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - ((thanh thuong) OR (thanh huong)) mai dung cong ban than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) xanh - ((thanh thuong) OR (thanh huong)) mai dung cong ban than cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - ((thanh thuong) OR (thanh huong)) mai dung cong ban than cao*.