Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
truong va » truong dai, truong dao, luong va
cong san » cong tac
than tap » toan tap, phan tap, than cap
han tap » han tai, toan tap, nhan tai

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