Perhaps you should try some spelling variations:
trinh phan » trinh han, trinh quan, thanh phan
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua trong » cua truong, cua trung, qua trong
tinh cua » trinh cua, sinh cua, tinh chat
phan dau » phan tu, hang dau
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh tinh cua trong cong trinh phan dau~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh tinh cua trong cong trinh phan dau*.