Perhaps you should try some spelling variations:
thuat nhung » thuat chung, thuat chuong, thuat dung
hanh trung » thanh trung, hanh trang, manh trung
tuan nhung » quan nhung, tuan hung, tranh nhung
thuat hung » thuat dung, thuat ung, thuat xung
hieu cach » hieu cac, chieu sach, hieu ca
cong luan » tong luan, cong tuan, dong luan
hoc hieu » hoc thieu, hoc hien, doc hieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - hanh trung ((tuan nhung) OR (((thuat nhung) OR (thuat hung)))) cong luan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu cach - hanh trung ((tuan nhung) or (((thuat nhung) OR (thuat hung)))) cong luan van ban~".
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - hanh trung ((tuan nhung) or (((thuat nhung) OR (thuat hung)))) cong luan van ban*.