Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
phuong cham » phuong phap, phuong thao
chieu sang » chieu sach, chieu xanh, hieu lang
cham dung » chan dung, pham dung, chao mung
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
vang khan » dang khanh, van phan, van khanh
hieu van » hieu va, thien van, lieu va
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (hieu van)) - thanh phuong cham dung cong vang khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu van)) - thanh phuong cham dung cong vang khan cap.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (hieu van)) - thanh phuong cham dung cong vang khan cap*.