Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
pha nhung » phai nhuong, tham nhung, phan chung
ha nhung » hoa nhung, hay nhung, va nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 - thanh trung ((ha nhung) OR (pha nhung)) cong tac toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung ((ha nhung) OR (pha nhung)) cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ((ha nhung) OR (pha nhung)) cong tac toan cao*.