Perhaps you should try some spelling variations:
nganh nang » nganh nong, ganh nang, nganh cong
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cong hoa » dong hoa, dong hoc, hang hoa
gian dan » gian lang
hoi dan » hoa dan, hoc dan, hoi dap
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: thu sach hoc tap, nghien cuu cong hoa ((nganh nang) OR (ngan hang)) hoc xa hoi dan gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien cuu cong hoa ((nganh nang) OR (ngan hang)) hoc xa hoi dan gian dan".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cuu cong hoa ((nganh nang) OR (ngan hang)) hoc xa hoi dan gian dan*.