Perhaps you should try some spelling variations:
truong cao » truong dai
lieu tinh » trieu tinh, diep tinh, bien tinh
trung cap » trung tam
hoc lieu » hoc dieu, hoc sieu, hoc tieu
cong dan » cong tan, huong dan, cong dong
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 lieu tinh - hanh ((trung cap) OR (truong cao)) nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc lieu tinh - hanh ((trung cap) OR (truong cao)) nhung ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc lieu tinh - hanh ((trung cap) OR (truong cao)) nhung ((cong dan) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc lieu tinh - hanh ((trung cap) OR (truong cao)) nhung ((cong dan) or (cong san)) toan cau*.