Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
hanh lai » hanh lam, hanh tai, thanh lap
lai cua » dai cua, hai cua, lai chau
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
nang xa » lang xa, nang ma, mang xa
van cac » van hac, van cau, van bac
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

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