Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
truong va » truong dai, truong cao, truong dao
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - manh ((trung tam) or (truong va)) dang cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - manh ((trung tam) OR (truong va)) dang cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - manh ((trung tam) or (truong va)) dang cong dan chan cau*.