Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cong dang » cong dong, cong dung, cong danh
trang cho » trong cho, trang o, sang cho
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
tran cao » toan cao, tran chau, tranh cac
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh trinh va hang ((cong dang) OR (cong dan)) ((tran cao) or (trang cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh trinh va hang ((cong dang) OR (cong dan)) ((tran cao) OR (trang cho)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu sach - hanh trinh va hang ((cong dang) OR (cong dan)) ((tran cao) or (trang cho))".
• Adding a wildcard symbol may retrieve word variants: theo chu sach - hanh trinh va hang ((cong dang) OR (cong dan)) ((tran cao) or (trang cho))*.