Perhaps you should try some spelling variations:
khanh phuong » khanh phong, thanh phuong, khanh phung
phuong hoa » huong hoa, phuong hoang, hung hoa
hoc khanh » hoc nhanh, hoc thanh, hoc hanh
dich hoc » sinh hoc, hinh hoc, tinh hoc
van luan » van tuan, von luan, vay luan
van quan » van ban
tu dich » te dich, chu dich, hut dich
mo hoc » mon hoc, co hoc
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dich hoc tap, nghien cuu mo hoc khanh phuong hoa xa hai ((van luan) OR (van quan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dich hoc tap, nghien cuu mo hoc khanh phuong hoa xa hai ((van luan) OR (van quan)) van".
• Adding a wildcard symbol may retrieve word variants: tu dich hoc tap, nghien cuu mo hoc khanh phuong hoa xa hai ((van luan) OR (van quan)) van*.