Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
danh dau » lanh dao, hang dau, danh tu
van chat » cao chat
sach ky » sac ky, sach y, sach ty
cao hoi » co hoi, cao hoc, tao hoi
dau cua » dai cua, day cua, cau cua
te sach » toc sach
luc va » duc va, tuc va
loc va » hoc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((cao hoi) or (cau hoi)). thien van chat ((luc va) OR (loc va)) danh dau cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((cao hoi) OR (cau hoi)). thien van chat ((luc va) OR (loc va)) danh dau cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((cao hoi) or (cau hoi)). thien van chat ((luc va) OR (loc va)) danh dau cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((cao hoi) or (cau hoi)). thien van chat ((luc va) OR (loc va)) danh dau cua triet*.