Perhaps you should try some spelling variations:
loai nang » loai nam, luan nang, loai san
cam truc » cau truc, nam truc, lam truoc
hanh vai » hanh vi, hanh tai, hanh van
hanh va » hang va, hanh vi
truc va » thuc va, thuc vat, trung va
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
lo nang » ho nang, ly nang, cao nang
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam

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