Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
khoa tang » kho tang, khoa dang, khoa tieng
dai khoa » da khoa, tai khoa, dac khoa
va nhanh » va thanh, va hanh, va nhan
thai cua » than cua, tai cuc, tri cua
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
su dai » sau dai, si dai, su tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su dai khoa tang xa hoi. ((hieu ve) or (hieu va)) cam duc va nhanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su dai khoa tang xa hoi. ((hieu ve) OR (hieu va)) cam duc va nhanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: su dai khoa tang xa hoi. ((hieu ve) or (hieu va)) cam duc va nhanh thai cua tre*.