Perhaps you should try some spelling variations:
cam truc » cau truc, nam truc, lam truoc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
hanh va » hang va, hanh vi
sach lo » sach dao, sach doi, sach hoi
truc va » thuc va, thuc vat, trung va
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
lo nang » ho nang, ly nang, loai nang
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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 lo nang xa hoi. hieu ve cam truc va ((hanh tai) or (hanh va)) ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach lo nang xa hoi. hieu ve cam truc va ((hanh tai) OR (hanh va)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach lo nang xa hoi. hieu ve cam truc va ((hanh tai) or (hanh va)) ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach lo nang xa hoi. hieu ve cam truc va ((hanh tai) or (hanh va)) ((cua tre) OR (cua te))*.