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

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