Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh tran » thanh trang, thanh toan, thanh tra
chua nang » chuc nang, chua xang, cuu nang
trang suc » trang phuc, trang thuc, tran duc
dung cong » dung trong
tran chau » tranh chap, tran huu
kha nang » phap nang, ky nang, ki nang
trang su » trong su, tang su, trang du

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 ((chua nang) OR (kha nang)) - hanh ((trang su) OR (trang suc)) dung cong thanh tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chua nang) OR (kha nang)) - hanh ((trang su) or (trang suc)) dung cong thanh tran chau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chua nang) OR (kha nang)) - hanh ((trang su) or (trang suc)) dung cong thanh tran chau*.