Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
thien hach » thien thanh, hien hanh
hien tach » chiet tach, vien bach, hien hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
chong tan » cong tan, chong gian, chong tham
tinh cua » trinh cua, sinh cua, tinh chat
tan van » tran van, tang van, luan 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 ((hien tach) OR (thien hach)) - hanh tinh cua nhung chong tan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tach) OR (thien hach)) - hanh tinh cua nhung chong tan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tach) OR (thien hach)) - hanh tinh cua nhung chong tan van ban*.