Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
chong doc » chong dich, chon loc, hong duc
hanh hoc » thanh hoc, hinh hoc, anh hoc
hoc phap » hoc phan, hoc pho, hoc chat
hoc phat » hoc phan, hoc pho
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
tu hanh » du hanh, lu hanh, thuc hanh
hoi van » hoi va, hoi dan, hai van
doc xa » duoc xa, hoc xa, do xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hanh hoc tap, nghien cua cong ((hoc phap) OR (hoc phat)) chong doc xa hoi van nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hanh hoc tap, nghien cua cong ((hoc phap) OR (hoc phat)) chong doc xa hoi van nhan van".
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghien cua cong ((hoc phap) OR (hoc phat)) chong doc xa hoi van nhan van*.