Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cong phap » chong phap, cong phan, cong pham
phap tong » phap thong, phap tang, phap cong
tong cong » trong cong, cong cong, dung cong
trinh hoc » trinh hoa, tinh hoc, trinh hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh cong phap tong cong trinh hoc cao~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh cong phap tong cong trinh hoc cao*.