Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cham duc » pham duc, cham soc, pham duy
tru nang » tra nang, truc nano, thi nang
tri nang » thi nang, tra nang, tri bang
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
tu sach » thu sach, su sach, te sach
tu cham » toc cham, thi cham
hieu tu » chieu tu, hieu tuc, hien tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tru nang) OR (tri nang)) xa hoi. hieu tu cham duc ((va hanh) or (va danh)) de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tru nang) OR (tri nang)) xa hoi. hieu tu cham duc ((va hanh) OR (va danh)) de ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tru nang) OR (tri nang)) xa hoi. hieu tu cham duc ((va hanh) or (va danh)) de ve triet*".