Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
va tinh » may tinh
tinh ve » trinh ve, tinh ven, dinh ve
ma hoi » xa hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
ve su » va su

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 ky nang ((ma hoi) or (mai hoi)). lieu va cam xuc va tinh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (mai hoi)). lieu va cam xuc va tinh ve su triet*.