Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
van thuong » va thuong, van chuong, van phuong
cong ngang » cong nhan, cong quang, cong lang
ngang luan » tang luan, hang luan, nganh luat
hanh tran » hanh trang, thanh tran, hanh tram
tran van » luan van
luan ban » luan van, luan san, luan han

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

• Performing a fuzzy search may retrieve terms with similar spellings: thai ((va tinh) OR (may tinh)) - hanh tran van thuong cong ngang luan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thai ((va tinh) OR (may tinh)) - hanh tran van thuong cong ngang luan ban*".