Perhaps you should try some spelling variations:
thi chieu » thi chien, thi hieu, theo chieu
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
va tuong » va thuong, xa truong, va phuong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (thi chieu)) xanh - canh tranh ((va thong) or (va tuong)) cong dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) xanh - canh tranh ((va thong) OR (va tuong)) cong dan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) xanh - canh tranh ((va thong) or (va tuong)) cong dan phan dau*.