Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
chuc nganh » chuc nang, hoc nganh, chuc danh
cac nganh » hoc nganh
thu sach » tu sach, thuat sach, thuoc sach
sach hoi » sach doi, sach moi, cach thoi
van tuan » van quan, van ban, anh tuan
tuan tai » toan tai, quan tai, tan tai
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: thu sach hoi dap, nghien cua cong ((chuc nganh) OR (cac nganh)) hoa hoc xa hoi van tuan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoi dap, nghien cua cong ((chuc nganh) OR (cac nganh)) hoa hoc xa hoi van tuan tai".
• Adding a wildcard symbol may retrieve word variants: thu sach hoi dap, nghien cua cong ((chuc nganh) OR (cac nganh)) hoa hoc xa hoi van tuan tai*.