Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cuu » thai cua, tai cuc, thi cuc
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
duc van » duc tan, duc manh, duc phan
cuu tre » cua tre, cau tren, cau treo
su sai » su tai, su hai, su dai
sai ky » sac ky
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 sai ky tang xa hoi. hieu va cam ((duc van) or (duc va)) hanh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky tang xa hoi. hieu va cam ((duc van) OR (duc va)) hanh thai cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sai ky tang xa hoi. hieu va cam ((duc van) or (duc va)) hanh thai cuu tre*.