Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh ve » hanh vi, hanh va, hanh kem
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
co sach » bo sach, cuon sach, hoc sach
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) or (co sach)) ty ((nang xa) or (nang cao)) hoi. hieu va cam xuc va hanh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) ty ((nang xa) OR (nang cao)) hoi. hieu va cam xuc va hanh ve su triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (co sach)) ty ((nang xa) or (nang cao)) hoi. hieu va cam xuc va hanh ve su triet*.