Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong tinh » phuong trinh, phuong binh, khuong tinh
hieu lang » chieu sang, hieu quang, nhieu tang
trang cua » tranh cua, tang cua, trung cua
doi hieu » doi chieu, doc hieu, doi hien
mang cua » manh cua, dung cua, ban cua
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: doi hieu lang - hanh ((trang cua) or (mang cua)) nhung phuong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh ((trang cua) OR (mang cua)) nhung phuong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh ((trang cua) or (mang cua)) nhung phuong tinh toan ban*.