Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham truc » cau truc, nham thuc, pham thuc
thu sach » thuat sach, thuoc sach, thu hoach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
tu sach » su sach, te sach, tu cach
vi cua » vai cua, di cua

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) or (thu sach)) ky nang xa hoi. hieu ve cham truc ((va hanh) OR (va danh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang xa hoi. hieu ve cham truc ((va hanh) OR (va danh)) vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang xa hoi. hieu ve cham truc ((va hanh) OR (va danh)) vi cua triet*".