Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoa nganh » hoc nganh, khoi nganh, hoa doanh
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
cac gian » cac giai, cac giac, cac giao
gian dan » gian lang
tu mach » tu cach, tu manh, tu hach
voi cac » loi cach
ma voi » ba voi, da voi, ma moi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu mach hoc tap, nghien ((cuu cong) OR (cua cong)) hoa nganh cong hoc ma voi cac gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien ((cuu cong) OR (cua cong)) hoa nganh cong hoc ma voi cac gian dan".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((cuu cong) OR (cua cong)) hoa nganh cong hoc ma voi cac gian dan*.