Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
thuc dan » thuc hanh, hoc dan, thuc vat
thai cuu » thai cua, tai cuc, thi cuc
cuu tre » cua tre, cau tren, cau treo
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
su sac » su sach, su cac
su xac » pu xac, su cac
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su xac)) ky tang xa hoi. hieu va cam ((thuc dan) or (xuc ban)) nhanh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky tang xa hoi. hieu va cam ((thuc dan) OR (xuc ban)) nhanh thai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su xac)) ky tang xa hoi. hieu va cam ((thuc dan) or (xuc ban)) nhanh thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su xac)) ky tang xa hoi. hieu va cam ((thuc dan) or (xuc ban)) nhanh thai cuu tre*.