Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
bang cau » hang cau, bang cac, nang cao
vu sach » vu bach, su sach, vu khach
va tinh » may tinh
cuu tre » cua tre, cau tren, cau treo
sach tu » sach thu, cach tu, sach ty
tu bang » thu bang, tu ban, te bang
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
vi cuu » vi luu, vinh cuu

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 bang cau hoi. hieu ((ve cam) OR (va cam)) xuc ((va thanh) or (va tinh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tu bang cau hoi. hieu ((ve cam) OR (va cam)) xuc ((va thanh) OR (va tinh)) vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach tu bang cau hoi. hieu ((ve cam) OR (va cam)) xuc ((va thanh) or (va tinh)) vi cuu tre*".