Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
dung cua » dung cho
cong van » cong vang, cong san, song van
tuan ban » tuan bang, luan ban, quang ban
toan ban » van 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 - hanh ((dung cua) or (dung luan)) nhung cong van ((tuan ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((dung cua) OR (dung luan)) nhung cong van ((tuan ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((dung cua) or (dung luan)) nhung cong van ((tuan ban) or (toan ban))*.