Perhaps you should try some spelling variations:
nang loai » dang loai, nang noi, nhan loai
thanh dam » thanh dat, thanh nam, thanh tam
hanh dao » lanh dao, thanh dat, doanh dao
loai hoc » logic hoc, loai khoa, dai hoc
hieu van » thien van, lieu va, hieu ve
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
xuc xa » tuc xa, buc 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 sach ky nang loai hoc. ((hieu van) or (hieu va)) cam xuc xa ((hanh dao) OR (thanh dam)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang loai hoc. ((hieu van) OR (hieu va)) cam xuc xa ((hanh dao) OR (thanh dam)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang loai hoc. ((hieu van) or (hieu va)) cam xuc xa ((hanh dao) OR (thanh dam)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang loai hoc. ((hieu van) or (hieu va)) cam xuc xa ((hanh dao) OR (thanh dam)) cua tre*.