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