Perhaps you should try some spelling variations:
dong phuong » duong phuong, dung phuong, dong huong
phuong tinh » phuong trinh, phuong binh, khuong tinh
huong cua » dung cua
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
hang cua » mang cua, hang ca, thong cua
toan tap » toan 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 ((hang cua) or (huong cua)) dong phuong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((hang cua) OR (huong cua)) dong phuong tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((hang cua) or (huong cua)) dong phuong tinh toan tap*.