Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, anh trinh
canh tinh » hanh tinh, manh tinh, canh tranh
lang cong » dang cong, bang cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
va lang » va nang, hoa lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((canh trinh) OR (canh tinh)) va lang cong dan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((canh trinh) or (canh tinh)) va lang cong dan ((toan cao) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((canh trinh) or (canh tinh)) va lang cong dan ((toan cao) OR (toan tap))*.