Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
tu sach » thu sach, su sach, te sach
lam tuc » lam thuoc, lam truoc, luat tuc
tinh va » tich va, trinh vat, tinh gia
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu va » hieu qua
hang xa » hoang xa, hang va, hang ca
ty hang » ly hang, ty xang, thi hang
tuc va » thuc va, truc va, tuc xa

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 ty hang xa hoi. ((hieu va) or (lieu va)) lam tuc va ((tinh va) OR (trinh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang xa hoi. ((hieu va) OR (lieu va)) lam tuc va ((tinh va) OR (trinh van)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang xa hoi. ((hieu va) or (lieu va)) lam tuc va ((tinh va) OR (trinh van)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang xa hoi. ((hieu va) or (lieu va)) lam tuc va ((tinh va) OR (trinh van)) cua tre*.