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
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
tung va » trung va, tuong va, dung va

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