Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh lang » nhanh lang, hanh mang, hanh trang
cao nhung » cho nhung, cam nhung, cao chung
lang cao » nang cao, lang co, quang cao
cong tan » cong tac, cong san, cong thanh
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 hieu lang - hanh lang cao nhung cong tan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh lang cao nhung cong tan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh lang cao nhung cong tan ((toan tap) or (toan ban))*.