Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoach hoi » hoc hoi, hoach ha, sach hoi
hoc nganh » hoc nhanh
cong thuc » cong tac
van nhan » van phan, van thanh, danh nhan
nhan tao » nhan tai, nhan dan
hoi tap » hoi dap, hoc tap, hoi tai
van hoc » van hoa
va hoi » xa hoi, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu hoach hoi tap, nghien cuu van hoc nganh cong thuc ((va hoi) OR (va hoc)) van nhan tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu hoach hoi tap, nghien cuu van hoc nganh cong thuc ((va hoi) OR (va hoc)) van nhan tao".
• Adding a wildcard symbol may retrieve word variants: thu hoach hoi tap, nghien cuu van hoc nganh cong thuc ((va hoi) OR (va hoc)) van nhan tao*.