Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
vien nganh » vien thanh
hanh phan » thanh phan, anh phan, hanh han
va thong » va phuong, he thong, va cong
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan tap » phan lap, han tap, pha tap

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) or (vien nganh)) - hanh phan ((va thong) or (va thuong)) cong ban phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (vien nganh)) - hanh phan ((va thong) OR (va thuong)) cong ban phan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (vien nganh)) - hanh phan ((va thong) or (va thuong)) cong ban phan tap*.