Perhaps you should try some spelling variations:
chau trong » chu trong, chat trong, cau trong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
hanh tran » hanh trang, thanh tran, hanh tram
tran chau » tranh chap, tran huu
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - hanh tran chau trong cong dan ((than cau) OR (phan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - hanh tran chau trong cong dan ((than cau) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh tran chau trong cong dan ((than cau) OR (phan cau))*.