Perhaps you should try some spelling variations:
phan cong » thanh cong
hach lien » mach dien, hai lien, cach bien
khoa phan » hoa phan, khoa than, khoa phau
pho thong » he thong
dac khoa » da khoa, dai khoa, dau khoa
lien tuc » kien thuc, kien truc, dien tu
thoi pho » hoc pho, doi pho, hoi tho
sach tri » sach tai, sach tren, sach truc
tuc dac » tuc cac, tuc dan, thuoc dac
te sach » toc sach
tu hach » tu hanh, tu cach, tu sach
tue cac » tu cac, tuc cac
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tri ((tue cac) OR (te cac)) thoi pho thong ) or ( tu hach lien tuc dac khoa phan cong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tri ((tue cac) OR (te cac)) thoi pho thong ) OR ( tu hach lien tuc dac khoa phan cong )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te sach tri ((tue cac) OR (te cac)) thoi pho thong ) or ( tu hach lien tuc dac khoa phan cong ))".
• Adding a wildcard symbol may retrieve word variants: (( te sach tri ((tue cac) OR (te cac)) thoi pho thong ) or ( tu hach lien tuc dac khoa phan cong ))*.