Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
tung cap » trung cap, cung cap, thong cap
cap bang » cao bang, can bang, lap bang
cong san » cong tac
toan cao » toan ban, toan tap

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 - thanh tung cap bang ((cong dong) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh tung cap bang ((cong dong) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh tung cap bang ((cong dong) or (cong san)) toan cao*.