Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
vai cuu » vai cua
sach ty » sach y, sach tu, sach thu
ve chat » va chat, van chat
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
huu va » cuu va
tuu va » tu va, cuu va, tru va

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