Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
vu sach » vu bach, su sach, vu khach
te sach » toc sach
va cham » va chat, va tham
hanh va » hang va, hanh vi
bac va » ban va, bac ha, bao va
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (te sach)) ky nang x hoi. lieu va cham ((bac va) OR (luc va)) hanh va su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (te sach)) ky nang x hoi. lieu va cham ((bac va) OR (luc va)) hanh va su triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (te sach)) ky nang x hoi. lieu va cham ((bac va) OR (luc va)) hanh va su triet*.