Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
dang cong » dung cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
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 ((trang cua) or (tranh cua)) dang cong tan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((trang cua) OR (tranh cua)) dang cong tan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((trang cua) or (tranh cua)) dang cong tan ((toan cau) or (toan ban))*.