Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
vi cuu » vi luu, vinh cuu
ve cam » ve cham, va cam, ve cai

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