Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh trinh » canh tranh, hanh chinh
nhung dung » phuong dung, ung dung, thong dung
hieu sang » chieu sang, hieu lang, hieu quang
doc hieu » toc thieu, hoc thieu, hoc hien
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sang - hanh trinh luat ((nhung dung) or (nhung phuong)) van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh trinh luat ((nhung dung) OR (nhung phuong)) van tan tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - hanh trinh luat ((nhung dung) or (nhung phuong)) van tan tap*.