Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
manh cua » doanh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 tinh - lanh ((manh cua) or (ban cua)) hang cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - lanh ((manh cua) OR (ban cua)) hang cong dan toan cao*.