Perhaps you should try some spelling variations:
khau luan » khoa luan, phap luan, pham luan
thanh hoa » thanh pho
thanh moi » thanh loi, thanh hai, thanh tai
luan san » luan van, luan hoan, luan phan
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va khau » va khao, va kha, va khac
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
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 ky ((nang xa) or (lang xa)) hoi. lieu va khau luan san ((thanh moi) OR (thanh hoa)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang xa)) hoi. lieu va khau luan san ((thanh moi) OR (thanh hoa)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) or (lang xa)) hoi. lieu va khau luan san ((thanh moi) OR (thanh hoa)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (lang xa)) hoi. lieu va khau luan san ((thanh moi) OR (thanh hoa)) cua te*.