Perhaps you should try some spelling variations:
nang loai » dang loai, nang noi, nhan loai
loai hoc » logic hoc, loai khoa, dai hoc
lanh dai » lanh dao, lanh hai, lang dai
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va lanh » va lang, va danh, va hanh
cua tre » cua te, cuu tre, cua triet
so sac » so sach, so dac
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang loai hoc. ((hieu ve) or (hieu va)) cam tuc va lanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang loai hoc. ((hieu ve) OR (hieu va)) cam tuc va lanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: so sac ky nang loai hoc. ((hieu ve) or (hieu va)) cam tuc va lanh dai cua tre*.