Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cam » viec lam, viec cua, viec va
sach ty » sach tu, sach thu, xach tay
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, va danh
vai cua » hai cua, lai cua, bai cua
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va

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 ty) OR (sach y)) nang ma hoi. hieu viec cam xuc va hanh ((vai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang ma hoi. hieu viec cam xuc va hanh ((vai cua) OR (dai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) nang ma hoi. hieu viec cam xuc va hanh ((vai cua) or (dai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) nang ma hoi. hieu viec cam xuc va hanh ((vai cua) or (dai cua)) triet*.