Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
cau tuc » cau truc, cau tu, cau luc
hanh va » hang va
sach ly » sach y, sach lo, sach ty
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
ly nang » ky nang, ly hang, ly vang
va cau » van cau, va cac, va dau
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly nang ma hoi. hieu va cau tuc xa ((hanh va) or (hanh vi)) ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ma hoi. hieu va cau tuc xa ((hanh va) OR (hanh vi)) ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang ma hoi. hieu va cau tuc xa ((hanh va) or (hanh vi)) ((cua triet) OR (su triet))*".