Perhaps you should try some spelling variations:
hieu sang » chieu sang, hieu lang, hieu quang
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
chua nang » chuc nang, chua xang, kha nang
doc hieu » toc thieu, hoc thieu, hoc hien
cua nang » cua dang, cua hang, cua nong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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 tung) or (hanh mang)) ((cua nang) or (chua nang)) cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - ((hanh tung) OR (hanh mang)) ((cua nang) OR (chua nang)) cong tan toan tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - ((hanh tung) or (hanh mang)) ((cua nang) or (chua nang)) cong tan toan tap*.