Perhaps you should try some spelling variations:
thien van » thi van
va thanh » gia thanh, ban thanh, va tinh
thu sach » thuat sach, thuoc sach, thu hoach
van cau » van dau, van hau, van chat
vai cau » va cau, vai cac, lai chau
tu sach » su sach, te sach, tu cach
cam luc » cam xuc, cau luc
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van dam
luc va » duc va, tuc va, loc 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) or (thu sach)) ky nang xa hoi. thien van cam luc va thanh ((vai cau) OR (van cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang xa hoi. thien van cam luc va thanh ((vai cau) OR (van cau)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang xa hoi. thien van cam luc va thanh ((vai cau) OR (van cau)) tren".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang xa hoi. thien van cam luc va thanh ((vai cau) OR (van cau)) tren*.