Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh noi » ha noi, hanh vi, nang noi
hanh doi » thanh doi, hang doi, hanh moi
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
vu kham » vu khanh
va cao » va cac, va co, va 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 ((va cao) or (vu kham)) thuc va ((hanh doi) OR (hanh noi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoi. hieu ((va cao) OR (vu kham)) thuc va ((hanh doi) OR (hanh noi)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoi. hieu ((va cao) or (vu kham)) thuc va ((hanh doi) OR (hanh noi)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoi. hieu ((va cao) or (vu kham)) thuc va ((hanh doi) OR (hanh noi)) cua triet*.