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 thu » theo chu, theo tu, theo tieu
thu sach » tu sach, thuat sach, thuoc sach
van hang » van khang, van hoang, van thang
tran cao » toan cao, tran chau, tranh cac
va hang » va nang, va lang, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo thu sach - hanh trinh ((va hang) or (van hang)) cong dang ((tran cao) or (trang cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thu sach - hanh trinh ((va hang) OR (van hang)) cong dang ((tran cao) OR (trang cho)).
• Adding a wildcard symbol may retrieve word variants: theo thu sach - hanh trinh ((va hang) or (van hang)) cong dang ((tran cao) or (trang cho))*.