Perhaps you should try some spelling variations:
phan chong » phan cong, phan hong, phap chong
canh thoi » cach thoi, hanh thoi, anh tho
khoa phan » hoa phan, khoa than, khoa phau
thoi tap » toi tap, hoc tap, thoi dai
cuu toan » cuu hoan, huu toan, cuu thanh
cua toan » xuan toan, cua thanh, cua doanh
chong do » chong doc, cuong do, chong co
nhan tai » hang tai, van tai, toan tai
ve canh » van canh, ve thanh
va nhan » van nhan, ca nhan, va phan
do xa » doi xa, do va, o xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve canh thoi tap, nghien ((cuu toan) OR (cua toan)) khoa phan chong do xa hoi va nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ve canh thoi tap, nghien ((cuu toan) OR (cua toan)) khoa phan chong do xa hoi va nhan tai".
• Adding a wildcard symbol may retrieve word variants: ve canh thoi tap, nghien ((cuu toan) OR (cua toan)) khoa phan chong do xa hoi va nhan tai*.