Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
thi van » thi lan, thi hanh, thi nang
nam ma » nam mua, nam a, nam va
ma van » mai van, va van, ha van
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 ky) or (sach y)) lang xa hoi. ((thien van) or (thi van)) nam ma van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) lang xa hoi. ((thien van) OR (thi van)) nam ma van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) lang xa hoi. ((thien van) or (thi van)) nam ma van hanh vi cua te*.