Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, pho thong
thong minh » thong tin, hoang minh
chan thong » chan thuong, chan hong, nhan thong
giai chan » giai han, giai phau, giai doan
sach cha » sach nha, sach ha, sach cua
sach che » sach thue, sach nha, sach cap
tu sach » thu sach, su sach, tu cach
me giai » de giai, ve giai, ke giai
te sach » toc sach
che me » che my

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach cha me giai phap thong minh ) or ( te sach che me giai chan thong minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach cha me giai phap thong minh ) OR ( te sach che me giai chan thong minh )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach cha me giai phap thong minh ) or ( te sach che me giai chan thong minh ))*.