Perhaps you should try some spelling variations:
nganh thong » nganh khong, nganh cong, nhanh chong
time mach » tim mach, tinh mach
hoc nganh » hoc nhanh
thong hoc » thuong hoc, tuong hoc, thong hoa
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » cong hoa, cong coc, cong ho
dong hoc » dong co, dong luc
xua hai » qua hai, cua hai, xuan thai
xa hai » xa thai, xa hoi, xa dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: time mach hoc tap, nghien cuu cong hoc nganh thong hoc ((xa hai) or (xua hai)) van dong hoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: time mach hoc tap, nghien cuu cong hoc nganh thong hoc ((xa hai) OR (xua hai)) van dong hoc.
• Adding a wildcard symbol may retrieve word variants: time mach hoc tap, nghien cuu cong hoc nganh thong hoc ((xa hai) or (xua hai)) van dong hoc*.