Perhaps you should try some spelling variations:
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
trinh dan » trinh han, trinh san, trinh da
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
phan cau » phan dau, phan cac, phan tu
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - ((hanh hang) or (hang hang)) cua cong trinh dan ((phan cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((hanh hang) OR (hang hang)) cua cong trinh dan ((phan cau) OR (can cau)).
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh hang) or (hang hang)) cua cong trinh dan ((phan cau) or (can cau))*.