Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
chinh ca » chinh ta, chinh va, chinh tai
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
doan cao » doanh cao, toan cao, doan cap
ca hang » cua hang, ca chang, va hang

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 (theo chu)) xanh - hanh chinh ca hang ((cong tan) OR (cong tac)) doan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - hanh chinh ca hang ((cong tan) OR (cong tac)) doan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) xanh - hanh chinh ca hang ((cong tan) OR (cong tac)) doan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - hanh chinh ca hang ((cong tan) OR (cong tac)) doan cao*.