Perhaps you should try some spelling variations:
chao truong » cho truong, cao truong, cac truong
chieu tinh » trieu tinh, chau tinh, kieu tinh
tranh chao » tranh chap, trinh chao, tranh cua
lieu tinh » trieu tinh, diep tinh, bien tinh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu tinh) or (lieu tinh)) - canh tranh chao truong ((cong dan) OR (cong tan)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu tinh) OR (lieu tinh)) - canh tranh chao truong ((cong dan) OR (cong tan)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu tinh) or (lieu tinh)) - canh tranh chao truong ((cong dan) OR (cong tan)) phan cac".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu tinh) or (lieu tinh)) - canh tranh chao truong ((cong dan) OR (cong tan)) phan cac*.