Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
khoa thong » hoa thong, thoai thong, khoi khong
thuoc sach » hoc sach, nuoc sach, thuat sach
hoach tri » hoach toi, hoach hoi, hoach thu
khoa khoa » hoa khoa, khuan khoa, khoa hoc
sach tren » sach tien, sach tranh
pho thong » he thong
tri thuc » tri tue
dac khoa » da khoa, dai khoa, dau khoa
khoa pho » khoa phu, khoa phau, khoa hoc
tren tu » tren tau, tran tu, tre tu
tu dac » thu dac, tu cac, tu dat

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach tri thuc doanh khoa khoa thong ) or ( thuoc sach tren tu dac khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach tri thuc doanh khoa khoa thong ) OR ( thuoc sach tren tu dac khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach tri thuc doanh khoa khoa thong ) or ( thuoc sach tren tu dac khoa pho thong ))*.