Perhaps you should try some spelling variations:
thien van » thi van
vat thanh » dat thanh, gat thanh, tat thanh
thu sach » thuat sach, thuoc sach, thu hoach
lam thuc » lam thuoc, am thuc, nam thuc
thanh ke » thanh ket, thanh ve, thanh de
cau treo » cau theo, cau tren, cau triet
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
van lam » van nam
y nang » ky nang, ly nang, v nang
ke cau » ket cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) y nang xa hoi. thien van lam thuc vat thanh ke cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) y nang xa hoi. thien van lam thuc vat thanh ke cau treo.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) y nang xa hoi. thien van lam thuc vat thanh ke cau treo*.