Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, tho nang
danh vai » danh sai, danh va, doanh van
thu bang » thu ban, thu hang, chu bang
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu nang) or (thu bang)) xa hoi. hieu ((van cam) OR (van cau)) xuc va danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thu bang)) xa hoi. hieu ((van cam) OR (van cau)) xuc va danh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu nang) or (thu bang)) xa hoi. hieu ((van cam) OR (van cau)) xuc va danh vai cua tre*".