Perhaps you should try some spelling variations:
su triet » su viet, su tien
ve triet » va trien
su sach » so sach, vu sach
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
y tang » ky tang, 6 tang, 7 tang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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 y tang ma hoi. hieu ve cam tuc va hanh va ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y tang ma hoi. hieu ve cam tuc va hanh va ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y tang ma hoi. hieu ve cam tuc va hanh va ((su triet) or (ve triet))*.