Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cam » viec lam, viec cua, viec va
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
vai cua » hai cua, lai cua, bai cua
y nang » ky nang, ly nang, v nang
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: tu sach y nang ma hoi. hieu viec cam xuc ((va hanh) OR (va danh)) ((vai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu viec cam xuc ((va hanh) OR (va danh)) ((vai cua) OR (dai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. hieu viec cam xuc ((va hanh) OR (va danh)) ((vai cua) or (dai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu viec cam xuc ((va hanh) OR (va danh)) ((vai cua) or (dai cua)) triet*.