Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
coc nganh » hoc nganh, cac nganh, chuc nganh
khong hoc » khung hoc, thong hoc, khong thuoc
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
van gian » van giang, dan gian, van giao
gian dan » gian lang
tu bach » vu bach, tu cach, tu bac
mai tap » bai tap, mai tan, hai tap
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bach ((mai tap) OR (mai tat)), nghien cuu cong coc nganh khong hoc xa hoi van gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bach ((mai tap) OR (mai tat)), nghien cuu cong coc nganh khong hoc xa hoi van gian dan".
• Adding a wildcard symbol may retrieve word variants: tu bach ((mai tap) OR (mai tat)), nghien cuu cong coc nganh khong hoc xa hoi van gian dan*.