Perhaps you should try some spelling variations:
thuat tach » thuat sach, thuat mach, thuat tac
thu thuat » phau thuat, thu hut
hanh dong » anh dong, ha dong
hung cong » nhung cong, hung cuong, phung cong
manh toan » thanh toan, anh tuan, tinh toan
dong van » duong van, dang van, dong von
van hung » van dung, manh hung, van duong
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu thuat tach - hanh dong van hung cong ((dan toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu thuat tach - hanh dong van hung cong ((dan toan) OR (manh toan)) cau*.