Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
tang ma » mang may, tang van
hieu va » lieu va
xuc va » duc va, tuc va, luc va
ve cau » ke cau, va cau, ve cac

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 ((tang ma) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam xuc va thanh ve cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((tang ma) OR (nang x)) hoi. ((hieu va) OR (hieu qua)) cam xuc va thanh ve cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((tang ma) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam xuc va thanh ve cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((tang ma) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam xuc va thanh ve cau tren*.