Perhaps you should try some spelling variations:
khanh vi » hanh vi, khanh v, nhanh vi
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hoi dan » hoc dan, hoi dap, thoi dai
hieu va » lieu va, hieu qua
hieu vu » hieu ve, hieu su, dieu vu
xang xa » lang xa, mang xa, ang xa
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: te sach ty xang xa hoi. ((hieu vu) or (hieu va)) cham ((hoi dan) OR (hoa dan)) khanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xa hoi. ((hieu vu) OR (hieu va)) cham ((hoi dan) OR (hoa dan)) khanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang xa hoi. ((hieu vu) or (hieu va)) cham ((hoi dan) OR (hoa dan)) khanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xa hoi. ((hieu vu) or (hieu va)) cham ((hoi dan) OR (hoa dan)) khanh vi cua te*.