Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
hanh di » hanh vi, hang di, danh di
hanh de » hanh ve, hanh kem
y nang » ky nang, ly nang, v nang
uoc va » nuoc va, duoc va, quoc va
loc va » hoc va, luc 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: thu sach y nang x hoi. lieu va phat ((uoc va) or (loc va)) ((hanh di) OR (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. lieu va phat ((uoc va) OR (loc va)) ((hanh di) OR (hanh de)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. lieu va phat ((uoc va) or (loc va)) ((hanh di) OR (hanh de)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. lieu va phat ((uoc va) or (loc va)) ((hanh di) OR (hanh de)) cua triet*.