Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trong cam » trong cham, trong cac, trong lam
dan chinh » dang chinh, lan chinh, van chinh
chinh cau » chinh chau, chinh ca, chinh can
trong ca » trong cac, trong nha
cong dan » cong san, cong tan, huong dan
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh ((trong cam) or (trong ca)) nhung cong dan chinh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh ((trong cam) OR (trong ca)) nhung cong dan chinh cau*.