Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
vu sach » vu bach, su sach, vu khach
nang di » nang du, hang di, nang ji
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
cam tuc » cam xuc, cam tu, nam thuc
va nang » van nang, da nang, cam nang
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (thuoc sach)) ky lang xa hoi. hieu ve cam tuc va nang di ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (thuoc sach)) ky lang xa hoi. hieu ve cam tuc va nang di ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (thuoc sach)) ky lang xa hoi. hieu ve cam tuc va nang di ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (thuoc sach)) ky lang xa hoi. hieu ve cam tuc va nang di ((cua tre) OR (cua te))*.