Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
chinh qua » chinh cua, chinh sua, chinh quoc
qua nhung » quan nhung, cua nhung, qua chung
cong san » cong tac
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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