Perhaps you should try some spelling variations:
cao hoc » co hoc, cho hoc, chat hoc
hieu va » lieu va, hieu qua
luu tre » luu tru, cuu tre
luy tre » luyen tre
te bai » te bao, te tai, te ban
bai ky » ban ky, sai ky, bac ky
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
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: te bai ky nang cao hoc. hieu va cam ((xuc va) or (tuc va)) hanh vi ((luu tre) or (luy tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bai ky nang cao hoc. hieu va cam ((xuc va) OR (tuc va)) hanh vi ((luu tre) OR (luy tre)).
• Adding a wildcard symbol may retrieve word variants: te bai ky nang cao hoc. hieu va cam ((xuc va) or (tuc va)) hanh vi ((luu tre) or (luy tre))*.