Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
trien thuc » trien thuoc, tren thuc, trien thuat
tai truong » thi truong, tai trung, tang truong
phu thong » pho thong, phap thong, khau thong
tri thanh » thi thanh, tai thanh, tri hanh
thanh cac » hanh cac, thanh bac, thanh ca
khoan tai » khoa tai, khoan bai, khon tai
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
khoa phu » khoa phau, khoa thu, hoa phu
sach tri » sach tai, sach tren, sach truc
so sach » so sanh, bo sach, co sach
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach trien thuc anh khoa phu thong ) or ( tu sach tri thanh cac khoan tai truong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach trien thuc anh khoa phu thong ) OR ( tu sach tri thanh cac khoan tai truong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach trien thuc anh khoa phu thong ) or ( tu sach tri thanh cac khoan tai truong ))*.