Perhaps you should try some spelling variations:
thong minh » thong tin, hoang minh
sach thiet » sach thieu, cach thiet, hanh thiet
cong thong » cong thuong, cong trong, dong thong
thong tinh » thuong tinh, thong tin, trong tinh
gioi cong » gioi dong, gioi song, nguoi cong
thu sach » tu sach, thuat sach, thuoc sach
thiet le » thiet ke, thiet de, thiet lap
le nguoi » ly nguoi, lam nguoi, den nguoi
nguoi do » nguoi dao, nguoi co, nguoi moi
do thong » do hong, bo thong, do phong
cach che » cac che, sach che, cac he
tu cach » tu cac
me gioi » me giai, ve gioi, me nguoi
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: (( thu sach thiet le nguoi do thong minh ) or ( tu cach che me gioi cong thong tinh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach thiet le nguoi do thong minh ) OR ( tu cach che me gioi cong thong tinh )).
• Adding a wildcard symbol may retrieve word variants: (( thu sach thiet le nguoi do thong minh ) or ( tu cach che me gioi cong thong tinh ))*.