Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
hanh tri » thanh tri, hanh tai, hanh trinh
su triet » su viet, su tien, ve triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va tham » van tham, va cham, va thanh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
luc va » tuc va, loc 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 sac ky lang xa hoi. lieu va tham ((luc va) OR (duc va)) hanh tri ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. lieu va tham ((luc va) OR (duc va)) hanh tri ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. lieu va tham ((luc va) OR (duc va)) hanh tri ((cua triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. lieu va tham ((luc va) OR (duc va)) hanh tri ((cua triet) or (su triet))*.