Perhaps you should try some spelling variations:
hoc thieu » hoc hien
dang cong » dung cong
hang ban » hang luan, hang va, hang tai
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
ban cua » ban quan

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) or (toc thieu)) xanh - hang ban cua dang cong dan ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - hang ban cua dang cong dan ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - hang ban cua dang cong dan ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - hang ban cua dang cong dan ((toan cau) OR (toan cao))*.