Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
qua cham » qua hai, qua cac, va cham
vu sach » vu bach, su sach, vu khach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
qua cam » qua cac, qua ca, qua cai
cua tre » cua te, cuu tre, cua triet
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 tu nang xa hoi. hieu ((qua cam) OR (qua cham)) xuc ((van ban) or (van thanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tu nang xa hoi. hieu ((qua cam) OR (qua cham)) xuc ((van ban) OR (van thanh)) vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach tu nang xa hoi. hieu ((qua cam) OR (qua cham)) xuc ((van ban) or (van thanh)) vi cua tre*".