Perhaps you should try some spelling variations:
sach tham » sach nha
trong van » trong cac
sach thu » sach thue, sach thieu, cach thuc
qua pham » quan pham, quy pham, qua cham
van hanh » van thanh, ban hanh, van anh
van hoe » van hoa, van hoc, van hieu
duc van » duc va, duc tan, duc manh
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: so ((sach thu) or (sach tham)) trong van hoe. hieu qua pham duc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach thu) OR (sach tham)) trong van hoe. hieu qua pham duc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so ((sach thu) or (sach tham)) trong van hoe. hieu qua pham duc van hanh vi cua te*.