Perhaps you should try some spelling variations:
thanh sinh » thanh binh, thanh tinh, thanh vinh
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
nam mua » nam cua, nam qua, nam xua
sinh su » hinh su, dinh su, sinh tu
nang o » nang ho, nang ro, nang x
va nam » van nam, ha nam, va nay
mua va » vua va, sua va, xua 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 ky ((nang o) or (nang co)) hoc. hieu va nam mua va thanh sinh su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang o) OR (nang co)) hoc. hieu va nam mua va thanh sinh su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang o) or (nang co)) hoc. hieu va nam mua va thanh sinh su triet*.