Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
tieu xanh » tieu danh, chieu xanh, dieu hanh
thuc dung » thuoc dung, thuy dung, tuc dung
thu dung » thuy dung, thu dang, thu dong
cong tac » cong ty
vang ban » van ban, nang ban, lang ban
hang ban » hang luan, hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh trong ((thu dung) OR (thuc dung)) cong tac ((vang ban) or (hang ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh trong ((thu dung) OR (thuc dung)) cong tac ((vang ban) OR (hang ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh trong ((thu dung) OR (thuc dung)) cong tac ((vang ban) or (hang ban))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh trong ((thu dung) OR (thuc dung)) cong tac ((vang ban) or (hang ban))*.