Perhaps you should try some spelling variations:
ban hanh » ban hang
cau phuc » cau truc, chau phu, huu phuc
phuc ban » phuc van, thuc ban, thuoc ban
cuu tre » cau tren, cau treo
ky lang » ky nang, ky tang, tay lang
cua tre » cua te, cua triet, dua tren
ky dang » ky nang, ky danh
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
te sai » te tai, te bai, te lai
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: te sai ((ky lang) OR (ky dang)) hoa hoi. hieu ve cau phuc ban hanh kem ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ((ky lang) OR (ky dang)) hoa hoi. hieu ve cau phuc ban hanh kem ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ((ky lang) OR (ky dang)) hoa hoi. hieu ve cau phuc ban hanh kem ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sai ((ky lang) OR (ky dang)) hoa hoi. hieu ve cau phuc ban hanh kem ((cua tre) or (cuu tre))*.