Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
chinh vai » chinh tai, chinh vi, chinh tri
dung cong » dung trong
chinh va » chinh ta, chinh tai, hanh va
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: ((mot chieu) or (theo tieu)) xanh - hanh ((chinh va) or (chinh vai)) dung cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo tieu)) xanh - hanh ((chinh va) OR (chinh vai)) dung cong tan toan tap.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo tieu)) xanh - hanh ((chinh va) or (chinh vai)) dung cong tan toan tap*.