Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
van manh » van minh, van anh, van hanh
sach ky » sac ky, sach y, sach ty
manh ca » manh cua, manh cam, danh ca
xuc van » duc van, luc van, vuc van
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky ((nang xa) or (nang ma)) hoi. hieu ve cam xuc van manh ca ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc van manh ca ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((nang xa) or (nang ma)) hoi. hieu ve cam xuc van manh ca ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: so sach ky ((nang xa) or (nang ma)) hoi. hieu ve cam xuc van manh ca ((cua triet) OR (su triet))*.