Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
truong va » truong dai, truong cao, truong dao
trung hoc » trung quoc
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban

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 - hanh ((truong va) or (trung hoc)) nhung cong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((truong va) OR (trung hoc)) nhung cong dan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((truong va) or (trung hoc)) nhung cong dan ((toan cao) or (toan tap))*.