Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
trinh hang » trinh han, tranh hang, trinh hanh
va phuong » va thuong, cac phuong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
hang dau » hang va, hang tai
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) xanh - canh tranh va phuong cong trinh hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) xanh - canh tranh va phuong cong trinh hang dau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) xanh - canh tranh va phuong cong trinh hang dau*.