Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, nhan sinh
hanh trinh » canh tranh, hanh chinh
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
van hang » van khang, van hoang, van thang
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban
va hanh » van hanh, va thanh, va danh

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) or (nhanh tinh)) ((va hanh) or (van hang)) cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh trinh) OR (nhanh tinh)) ((va hanh) OR (van hang)) cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh trinh) or (nhanh tinh)) ((va hanh) or (van hang)) cong van tuan ban*.