Perhaps you should try some spelling variations:
sach tay » xach tay, sach hay, sach tai
sach nay » sach hay, sach vay, sach nang
va hanh » van hanh, va thanh, va danh
cau luc » cau phuc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tay) OR (sach nay)) lang xa hoi. hieu ve ((cau luc) OR (cau truc)) va hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tay) OR (sach nay)) lang xa hoi. hieu ve ((cau luc) or (cau truc)) va hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tay) OR (sach nay)) lang xa hoi. hieu ve ((cau luc) or (cau truc)) va hanh vi cua te*.