Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren
va hanh » van hanh, va thanh, va danh
cac dac » cac dan, cac dai, cac bac
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang ca, lang xa
dac va » duc va, day va, dat va
ve cac » va cac, vien cac

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 ty ((hang xa) or (hang va)) hoi. hieu ve cac dac va hanh vai ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((hang xa) OR (hang va)) hoi. hieu ve cac dac va hanh vai ((cuu tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((hang xa) or (hang va)) hoi. hieu ve cac dac va hanh vai ((cuu tre) or (cau treo))*.