Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien sach » dien sach, kien sach, thien hach
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
trinh han » trinh quan
manh cua » doanh cua, ban cua
han hai » hang hai, chan hai, phan hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - canh manh cua nhung cong trinh han hai~.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - canh manh cua nhung cong trinh han hai*.