Perhaps you should try some spelling variations:
thong minh » thong tin, hoang minh
nguoi dua » nguoi qua, nguoi cua, nguoi da
khoa minh » khoa hinh, khoa sinh, khoa tinh
sanh cha » canh cha, sanh ca, thanh cha
bo thong » pho thong, bo truong, he thong
va nguoi » ca nguoi, cua nguoi, dao nguoi
dua khoa » da khoa, sua khoa, qua khoa
sach cha » sach nha, sach che, sach ha
ve giai » ve giao, de giai, kem giai
su sach » so sach, vu sach
so sanh » do sanh
cha va » chat va, chai va, cham va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach cha va nguoi dua khoa minh ) or ( so sanh cha ((ve giai) OR (va giai)) bo thong minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach cha va nguoi dua khoa minh ) OR ( so sanh cha ((ve giai) OR (va giai)) bo thong minh )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( su sach cha va nguoi dua khoa minh ) or ( so sanh cha ((ve giai) OR (va giai)) bo thong minh ))".
• Adding a wildcard symbol may retrieve word variants: (( su sach cha va nguoi dua khoa minh ) or ( so sanh cha ((ve giai) OR (va giai)) bo thong minh ))*.