Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sach ty, sach kem, sach hay
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
dan sai » danh sai, doan sai, dan tai
sai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
he nam » ha nam, nghe nam
xe dan » ke dan, le dan, he dan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((sach ky) OR (sach y))) OR (sac ky)) nang ma hoi. hieu he nam thu xe dan sai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((((sach ky) OR (sach y))) or (sac ky)) nang ma hoi. hieu he nam thu xe dan sai cua triet~".
• Adding a wildcard symbol may retrieve word variants: te ((((sach ky) OR (sach y))) or (sac ky)) nang ma hoi. hieu he nam thu xe dan sai cua triet*.