Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((tinh toan) or (canh tranh)) cua hang cong tac ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((tinh toan) OR (canh tranh)) cua hang cong tac ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((tinh toan) or (canh tranh)) cua hang cong tac ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((tinh toan) or (canh tranh)) cua hang cong tac ((toan cau) OR (toan ban))*.