Perhaps you should try some spelling variations:
van phuong » van phong, va phuong, van chuong
thong minh » thong tin, hoang minh
phuong tin » phuong tien, thuong tin, phuong trinh
giai toan » giai doan, giai toa, gioi toan
thu sach » tu sach, thuat sach, thuoc sach
cua vien » cua viet, cua bien, cua viec
xe giai » de giai, ve giai, ke giai
sac cua » sach cua, tac cua, cac cua
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu sach (nha OR nhan) xe giai toan thong minh ) or ( tu sac cua vien gioi van phuong tin ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach (nha OR nhan) xe giai toan thong minh ) OR ( tu sac cua vien gioi van phuong tin )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thu sach (nha OR nhan) xe giai toan thong minh ) or ( tu sac cua vien gioi van phuong tin ))".
• Adding a wildcard symbol may retrieve word variants: (( thu sach (nha OR nhan) xe giai toan thong minh ) or ( tu sac cua vien gioi van phuong tin ))*.