Perhaps you should try some spelling variations:
dang van » hoang van, hang va
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
vu cham » va cham, vu kham, tu cham
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
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: tu sach ky ((lang xa) or (dang van)) hoi. hieu ((ve cam) or (vu cham)) thuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((lang xa) OR (dang van)) hoi. hieu ((ve cam) OR (vu cham)) thuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((lang xa) or (dang van)) hoi. hieu ((ve cam) or (vu cham)) thuc va hanh vi cua tre*.