Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong ham » truong cao, truong dao, truong va
nhung cong » dung cong, thong cong, hang cong
cong dan » cong san, cong tan, huong dan
dan han » dan chan, dan than, dan hanh
han ap » han tap, khan ap, dan ap

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 xanh) OR (chieu tinh)) - thanh ((truong ham) or (truong dai)) nhung cong dan han ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - thanh ((truong ham) OR (truong dai)) nhung cong dan han ap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu tinh)) - thanh ((truong ham) or (truong dai)) nhung cong dan han ap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu tinh)) - thanh ((truong ham) or (truong dai)) nhung cong dan han ap*.