Perhaps you should try some spelling variations:
thong trong » thuong trong, thong thong, thong thuong
luan thong » luan phong, luan tuong, luat thong
trong van » trong cac
hoc hieu » hoc thieu, doc hieu, hoc dieu
anh dung » anh dong, anh huong, sach dung
van quan » van ban
quan cua » quan luan, ban cua, gian cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (hoc hien)) manh - anh dung luan thong trong van quan cua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) manh - anh dung luan thong trong van quan cua.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc hien)) manh - anh dung luan thong trong van quan cua*.