Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
thanh ban » thanh san, thanh van, thanh bac
tang vat » tang van, dang vat, bang vat
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
than ban » toan ban, than man, nhuan ban

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 - anh ((tang vat) or (trang va)) thong cong dan ((than ban) or (thanh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - anh ((tang vat) OR (trang va)) thong cong dan ((than ban) OR (thanh ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - anh ((tang vat) or (trang va)) thong cong dan ((than ban) or (thanh ban))*.