Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh cac » hang cac, nhanh cay, hanh va
hanh cat » hanh luat, nhanh cay, hanh va
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
luc va » duc va, tuc va, loc va
va cam » va cham, va cac, va cao
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: su sach ty nang ma hoi. hieu va cam luc va ((hanh cat) or (hanh cac)) ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoi. hieu va cam luc va ((hanh cat) OR (hanh cac)) ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ma hoi. hieu va cam luc va ((hanh cat) or (hanh cac)) ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoi. hieu va cam luc va ((hanh cat) or (hanh cac)) ((cua triet) OR (su triet))*.