Perhaps you should try some spelling variations:
duong sinh » duong minh, duong manh, trong sinh
nham thuc » nhan thuc, nam thuc, nham thu
dung sinh » dang sinh, dung ninh, dung vinh
cua triet » cua viet, su triet, va triet
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va nham » va cham, va tham, va nha
vi cua » vai cua, di cua

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 lang xa hoi. hieu va nham thuc ((dung sinh) or (duong sinh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty lang xa hoi. hieu va nham thuc ((dung sinh) OR (duong sinh)) vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty lang xa hoi. hieu va nham thuc ((dung sinh) or (duong sinh)) vi cua triet*.