Perhaps you should try some spelling variations:
doanh taih » doanh thanh, doanh anh, doanh tinh
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
xuc va » duc va, tuc va, luc va

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 hoi. hieu van chat xuc va ((doanh tai) or (doanh taih)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang mai hoi. hieu van chat xuc va ((doanh tai) OR (doanh taih)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang mai hoi. hieu van chat xuc va ((doanh tai) or (doanh taih)) cua triet*.