Perhaps you should try some spelling variations:
ve triet » va trien
xang mai » lang mai, sang mai, hoang mai
su triet » su viet, su tien
sach ty » sach y, sach tu, sach thu
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao

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 ty xang mai hoi. hieu va cam xuc ((va hanh) or (gia thanh)) vi ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang mai hoi. hieu va cam xuc ((va hanh) OR (gia thanh)) vi ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang mai hoi. hieu va cam xuc ((va hanh) or (gia thanh)) vi ((su triet) or (ve triet))*.