Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
dan dau » danh dau, doan dau, van dau
thuc ca » thuc cua, thuc can, thuc cao
te sach » toc sach
vu nham » vu kham, sua nham
nang ma » tang ma, sang ma, nang cao
vu cham » va cham, vu kham, tu cham
ca dan » cac dan, ca dao
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu ((vu nham) or (vu cham)) thuc ca dan dau ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu ((vu nham) OR (vu cham)) thuc ca dan dau ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoi. hieu ((vu nham) or (vu cham)) thuc ca dan dau ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu ((vu nham) or (vu cham)) thuc ca dan dau ((cua tre) OR (cua triet))*.