Perhaps you should try some spelling variations:
trien nhan » trien nha, tri nhan, trien khai
trinh ket » tinh ket, trinh ke, trinh kiem
hoc trien » hoc tren, hoc tien, hoc truyen
qua manh » cua manh, qua danh, qua mang
manh cua » doanh cua, ban cua
viet ha » viet nam
ha hoc » hoa hoc, nha hoc, va hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao trinh ket qua manh cua nguoi viet ha hoc trien nhan~.
• Adding a wildcard symbol may retrieve word variants: giao trinh ket qua manh cua nguoi viet ha hoc trien nhan*.