Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh dang » hanh dong, anh dang, hanh dung
van trong » van truong, vang trong, ban trong
manh toan » thanh toan, anh tuan, tinh toan
hoc hieu » hoc thieu, hoc hien, doc hieu
dang van » hoang van, hang va
dan toan » van toan, xuan toan, dien toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh dang van trong cong ((((dan toan) or (dan than))) or (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh dang van trong cong ((((dan toan) OR (dan than))) OR (manh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh dang van trong cong ((((dan toan) or (dan than))) or (manh toan)) tap*.