Perhaps you should try some spelling variations:
dinh cuu » dinh chi
ban hang » ngan hang
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
qua cac » cua cac
sach ky » sac ky, sach y, sach kem
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo

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 ky) OR (sach ty)) nang xa hoi. hieu qua cac xuc ((va hanh) or (ban hang)) dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sach ty)) nang xa hoi. hieu qua cac xuc ((va hanh) OR (ban hang)) dinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) OR (sach ty)) nang xa hoi. hieu qua cac xuc ((va hanh) or (ban hang)) dinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ky) OR (sach ty)) nang xa hoi. hieu qua cac xuc ((va hanh) or (ban hang)) dinh cuu tre*.