Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
cong lang » cong vang, cong luong, cong quang
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
trang va » hang va
tran van » luan van
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: theo chu xanh - hanh ((trang va) OR (tran van)) phuong cong lang ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((trang va) OR (tran van)) phuong cong lang ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh ((trang va) OR (tran van)) phuong cong lang ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((trang va) OR (tran van)) phuong cong lang ((toan tap) or (toan ban))*.