Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
hanh doi » thanh doi, hanh noi, hang doi
thu sach » tu sach, thuoc sach, thu hoach
va cham » va chat, va tham
doi cua » dai cua, hoi cua
nang o » nang co, nang ho, nang ro
y nang » ky nang, ly nang, v nang
uoc va » nuoc va, duoc va, quoc va
loc va » hoc va, luc va
o hoi » co hoi, o hoc, o hai

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) or (thuat sach)) y nang o hoi. lieu va cham ((uoc va) or (loc va)) hanh doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat sach)) y nang o hoi. lieu va cham ((uoc va) OR (loc va)) hanh doi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuat sach)) y nang o hoi. lieu va cham ((uoc va) or (loc va)) hanh doi cua triet*.