Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, thien tinh, lieu tinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong thanh » dong thanh, cong trinh, cong tan
chinh qua » chinh cua, chinh sua, chinh quoc
qua chung » qua chuong, quat chung, cua chung
cong san » cong tac
toan cau » 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) OR (chieu tinh)) - hanh chinh qua chung ((cong thanh) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (chieu tinh)) - hanh chinh qua chung ((cong thanh) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tinh) OR (chieu tinh)) - hanh chinh qua chung ((cong thanh) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) OR (chieu tinh)) - hanh chinh qua chung ((cong thanh) or (cong san)) toan cau*.