Perhaps you should try some spelling variations:
hoc thuyet » hoc chuyen
thanh tung » thanh cong
hoc thiet » hoc thieu, hoc hien, toc thieu
dong cong » duong cong, dung cong, dang cong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
tung cua » trung cua, tuong cua, dung cua
cua dong » chua dong, cua cong, cua dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) OR (hoc thuyet)) anh - thanh tung cua dong cong luan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) OR (hoc thuyet)) anh - thanh tung cua dong cong luan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) OR (hoc thuyet)) anh - thanh tung cua dong cong luan phan tu*.