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
cua phuong » cuu phuong, cuc phuong, luan phuong
anh quang » anh xquang, anh quan, nhanh quang
hanh mang » nhanh mang, hanh trang, nhanh lang
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 quang))) or (hanh mang)) cua phuong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((((anh tang) OR (anh quang))) OR (hanh mang)) cua phuong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((((anh tang) or (anh quang))) or (hanh mang)) cua phuong cong tan toan cao*.