Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
va phuong » va thuong, cac phuong
anh tang » anh dang, anh nang, anh tong
anh sang » lanh sang, anh dang, anh nang
anh bang » anh hoang, anh quang, tinh bang
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - ((((anh tang) or (anh sang))) or (anh bang)) va phuong cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((((anh tang) OR (anh sang))) OR (anh bang)) va phuong cong tap toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((((anh tang) or (anh sang))) or (anh bang)) va phuong cong tap toan cau*.