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
trung cua » truong cua, trung tuan, trung cap
tranh cua » doanh cua, manh cua
cong tan » cong tac, cong san, cong thanh
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 ((trung cua) or (tranh cua)) nhung cong tan ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((trung cua) OR (tranh cua)) nhung cong tan ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh ((trung cua) or (tranh cua)) nhung cong tan ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((trung cua) or (tranh cua)) nhung cong tan ((toan tap) OR (toan ban))*.