Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, hang cong, dung cong
bang song » nang song
toan ban » van ban

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 - hanh trinh cua ((bang cong) or (bang song)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh cua ((bang cong) OR (bang song)) tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh cua ((bang cong) or (bang song)) tinh toan ban*.