Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cham xuc » cam xuc, chat xuc, cham soc
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va hanh, dia danh
vai cau » va cau, van cau, vai cac
su sach » so sach, vu sach
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cham xuc ((va danh) or (va dan)) vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cham xuc ((va danh) OR (va dan)) vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cham xuc ((va danh) or (va dan)) vai cau tren".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cham xuc ((va danh) or (va dan)) vai cau tren*.