Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, pho thong
thong minh » thong tin, hoang minh
chau thong » chau phong, khau thong, chan thuong
gian chau » gian cham, gian cua, gian cac
tu sach » thu sach, su sach, te sach
sach xa » sach dao, sach nha, sach bai
me giai » de giai, ve giai, ke giai
xa me » ba me, ca me
xa de » va de, a de, ga de
xa do » va do

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach xa me giai phap thong minh ) OR ( tu sach ((xa de) OR (xa do)) gian chau thong minh ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sach xa me giai phap thong minh ) or ( tu sach ((xa de) OR (xa do)) gian chau thong minh ))~".
• Adding a wildcard symbol may retrieve word variants: (( tu sach xa me giai phap thong minh ) or ( tu sach ((xa de) OR (xa do)) gian chau thong minh ))*.