Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dung cong
tnhan tai » toan tai, nhan tao, han tai
cong san » cong tac
nhan tai » hang tai, van tai, toan tai
dan va » dan ca, ban va, han va

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 - nhan ((dan va) or (doan va)) tong cong san ((tnhan tai) or (nhan tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - nhan ((dan va) OR (doan va)) tong cong san ((tnhan tai) OR (nhan tai)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - nhan ((dan va) or (doan va)) tong cong san ((tnhan tai) or (nhan tai))*.