Perhaps you should try some spelling variations:
mai khoi » tai khoa, cac khoi, dai khoa
mai khoa » tai khoa, may khoa, dai khoa
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
va nang » van nang, da nang, cam nang
nang ca » nang cao, nang cap, nang cai
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
ca cua » co cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang ((mai khoi) or (mai khoa)). hieu va cam xuc va nang ca cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((mai khoi) OR (mai khoa)). hieu va cam xuc va nang ca cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((mai khoi) or (mai khoa)). hieu va cam xuc va nang ca cua tu*.