Perhaps you should try some spelling variations:
doanh truong » doanh thuong, doan truong, doanh trong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
truong hoc » trung hoc, tuong ho, truong bo
cong toan » cong tan, cong hoan, cong tuan
thoi tai » phoi tai, tuoi tai, thai tai
thoi dai » hoc dai, hoi dap, hoi dan
tai toan » bai toan, tap toan, tai tuan
toan tai » toan tap, doanh tai, toan ban
su cach » su sach, tu cach, su cac
hoi tai » hoc tai, hoi trac
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: su cach ((thoi tai) OR (thoi dai)), nghien thu cong toan doanh truong hoc xa hoi tai toan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach ((thoi tai) OR (thoi dai)), nghien thu cong toan doanh truong hoc xa hoi tai toan tai".
• Adding a wildcard symbol may retrieve word variants: su cach ((thoi tai) OR (thoi dai)), nghien thu cong toan doanh truong hoc xa hoi tai toan tai*.