Perhaps you should try some spelling variations:
thien van » thi van
thu sach » thuat sach, thuoc sach, thu hoach
thi hanh » thi thanh
thanh de » hanh de, thanh ve, thanh do
va thanh » gia thanh, ban thanh, va tinh
lam tuc » lam thuoc, lam truoc, luat tuc
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
tu sach » su sach, te sach, tu cach
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
de cuu » de cua

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) or (thi hanh)) lam tuc va thanh de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) y nang xa hoi. ((thien van) OR (thi hanh)) lam tuc va thanh de cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) y nang xa hoi. ((thien van) or (thi hanh)) lam tuc va thanh de cuu tre*.