Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
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: tu sach ky lang xa hoi. hieu ve cam ((xuc va) or (((thuc va) OR (thuc day)))) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ve cam ((xuc va) OR (((thuc va) OR (thuc day)))) hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. hieu ve cam ((xuc va) or (((thuc va) OR (thuc day)))) hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ve cam ((xuc va) or (((thuc va) OR (thuc day)))) hanh vi cuu tre*.