Perhaps you should try some spelling variations:
phan duc » pham duc, phan tu, phan dau
tan hanh » tan thanh, tang hanh, toan hanh
sach thu » sach thue, sach thieu, sach tham
van phan » van phong, van thanh, luan phan
su sach » so sach, vu sach
nang xa » lang xa, nang ma, ang xa
hanh va » hang va, hanh vi
mang xa » lang xa, mang may, dang xay
thi van » thi lan, thi hanh, thi nang
va cua » va chua, via cua, ca 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: su sach thu ((((nang xa) or (mang xa))) or (nang x)) hoi. thi van phan duc tan hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((((nang xa) OR (mang xa))) OR (nang x)) hoi. thi van phan duc tan hanh va cua te.
• Adding a wildcard symbol may retrieve word variants: su sach thu ((((nang xa) or (mang xa))) or (nang x)) hoi. thi van phan duc tan hanh va cua te*.