Perhaps you should try some spelling variations:
truong tinh » truong kinh, truong minh, truong dinh
cong truong » cuong truong, cong thuong, cong trong
phuong tin » phuong tien, thuong tin, phuong trinh
sach tham » sach nha
giao cong » gia cong, giao thong, cao cong
te sach » toc sach
tham de » tham do, tham du, thai den
de giai » dan giai, kem giai
tham ke » tham kien, thanh ke
ke giao » te giao, ve giao, khoe giao

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 tham de giai (doan OR dan) phuong tin ) or ( te sach tham ke giao cong truong tinh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tham de giai (doan OR dan) phuong tin ) OR ( te sach tham ke giao cong truong tinh ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te sach tham de giai (doan OR dan) phuong tin ) or ( te sach tham ke giao cong truong tinh ))*".