Perhaps you should try some spelling variations:
truc va » thuc va, thuc vat, trung va
sach ly » sach y, sach lo, sach hay
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ly) OR (sach ty)) nang xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach ty)) nang xa hoi. hieu ve cam ((xuc va) OR (truc va)) hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ly) OR (sach ty)) nang xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) OR (sach ty)) nang xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh vi cua tre*.