Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
sach kem » hanh kem
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua
cua te » cua 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 kem) or (sach y)) nang ma hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sach y)) nang ma hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach kem) or (sach y)) nang ma hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sach y)) nang ma hoi. ((hieu ve) OR (hieu va)) cam xuc van hanh vi cua te*.