Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban tinh » ban thanh, quan tinh, ban hanh
sach ky » sach y, sach kem, sach hay
tinh vi » trinh vi, tinh voi, tinh va
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
vi cau » va cau, ve cau, di cau

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) or (sach ty))) or (sac ky)) lang xa hoi. hieu ve cac xuc ban tinh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach ky) OR (sach ty))) OR (sac ky)) lang xa hoi. hieu ve cac xuc ban tinh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: tu ((((sach ky) or (sach ty))) or (sac ky)) lang xa hoi. hieu ve cac xuc ban tinh vi cau tren*.