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
phoa nhung » pha nhung, phong nhung, cho nhung
hoa nhung » hoc nhung, hon 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 ((hoa nhung) or (phoa nhung)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung ((hoa nhung) OR (phoa nhung)) cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ((hoa nhung) or (phoa nhung)) cong tac toan cao*.