Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cong dang » cong dong, cong dan, cong dung
trang cho » trong cho, trang o, sang cho
theo rau » theo dau, theo mau, theo chu
rau sach » cau sach, hau sach, khau sach
tran cao » toan cao, tran chau, tranh cac
va hang » van hang, va nang, va hanh
va lang » va nang, hoa 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 rau sach - hanh trinh ((va hang) OR (va lang)) cong dang ((tran cao) or (trang cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo rau sach - hanh trinh ((va hang) OR (va lang)) cong dang ((tran cao) OR (trang cho)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo rau sach - hanh trinh ((va hang) OR (va lang)) cong dang ((tran cao) or (trang cho))".
• Adding a wildcard symbol may retrieve word variants: theo rau sach - hanh trinh ((va hang) OR (va lang)) cong dang ((tran cao) or (trang cho))*.