Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hang cua » mang cua, hang ca, huong cua
hanh cua » manh cua, hanh sua, doanh cua
cac xuc » cam xuc, cac nuoc, chat xuc
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac

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 sang) or (ky dang)) mai hoi. hieu ve cac xuc va ((hanh cua) OR (hang cua)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky dang)) mai hoi. hieu ve cac xuc va ((hanh cua) OR (hang cua)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky sang) or (ky dang)) mai hoi. hieu ve cac xuc va ((hanh cua) OR (hang cua)) su triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky dang)) mai hoi. hieu ve cac xuc va ((hanh cua) OR (hang cua)) su triet*.