Perhaps you should try some spelling variations:
ban hang » ngan hang
te sach » toc sach
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
cac lo » cac lop, cac co, cac bo
me hoi » le hoi
vi cua » vai cua, di cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ly nang ((me hoi) or (ma hoa)). hieu ve cac lo ((ban hanh) OR (ban hang)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ((me hoi) OR (ma hoa)). hieu ve cac lo ((ban hanh) OR (ban hang)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang ((me hoi) or (ma hoa)). hieu ve cac lo ((ban hanh) OR (ban hang)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((me hoi) or (ma hoa)). hieu ve cac lo ((ban hanh) OR (ban hang)) vi cua tre*.