Perhaps you should try some spelling variations:
phuong tien » phuong trinh
con thong » cong thong, con hong, cong thuong
gioi con » gioi co, gioi bon, gioi can
nguoi co » nguoi dao, nguoi moi, nguoi lao
nguoi do » nguoi dao, nguoi moi, nguoi dan
te sach » toc sach
sach ha » sach nha, sach han, sach xa
me gioi » me giai, ve gioi, me nguoi
ha me » cha me, ba me, ca me
ha le » va le

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach ha me gioi con thong tin ) or ( te sach ha le ((nguoi co) OR (nguoi do)) phuong tien ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach ha me gioi con thong tin ) OR ( te sach ha le ((nguoi co) OR (nguoi do)) phuong tien )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te sach ha me gioi con thong tin ) or ( te sach ha le ((nguoi co) OR (nguoi do)) phuong tien ))".
• Adding a wildcard symbol may retrieve word variants: (( te sach ha me gioi con thong tin ) or ( te sach ha le ((nguoi co) OR (nguoi do)) phuong tien ))*.