Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh tranh » canh tranh, hanh trinh, hanh trang
phuong dan » phuong danh, phuong doan, huong dan
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
dan than » dan chan, ban than, van than
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 hien) or (toc thieu)) tinh - hanh tranh van nhung phuong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (toc thieu)) tinh - hanh tranh van nhung phuong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (toc thieu)) tinh - hanh tranh van nhung phuong dan than cao*.