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
qua trong » quan trong, qua trinh, qua song
cong ban » cong bang, cong san, cong tan
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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 trung) or (thanh tung)) qua trong cong ban ((than cao) or (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((thanh trung) OR (thanh tung)) qua trong cong ban ((than cao) OR (thai cao)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((thanh trung) or (thanh tung)) qua trong cong ban ((than cao) or (thai cao))*.