Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
nham thuc » nhan thuc, nam thuc, nham thu
thanh ve » hanh ve, thanh va, thanh vien
pham thu » pham thuc, pham thi, pham tu
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang ha » long ha
lang xa » dang xay, lang van
hieu va » lieu va, hieu qua
ve cua » le cua, de cua, te 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 ky ((lang xa) OR (lang ha)) hoi. hieu va ((nham thuc) or (pham thu)) van thanh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((lang xa) OR (lang ha)) hoi. hieu va ((nham thuc) OR (pham thu)) van thanh ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((lang xa) OR (lang ha)) hoi. hieu va ((nham thuc) or (pham thu)) van thanh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((lang xa) OR (lang ha)) hoi. hieu va ((nham thuc) or (pham thu)) van thanh ve cua triet*.