Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
hoc dieu » hoc thieu, hoc hien
hoc sieu » hoc thieu, hoc hien, hoc su
manh cua » doanh cua, ban cua
cong san » cong tac
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc sieu)) tinh - canh manh cua thong cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc sieu)) tinh - canh manh cua thong cong san van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc sieu)) tinh - canh manh cua thong cong san van ban*.