Perhaps you should try some spelling variations:
lang trong » dung trong, cong trong, dong trong
cang thang » cong thanh, dang thanh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cua nhung » va nhung
cong tac » cong ty
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: hoc hien xanh - ((lang trong) or (cang thang)) cua nhung cong tac ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((lang trong) OR (cang thang)) cua nhung cong tac ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((lang trong) or (cang thang)) cua nhung cong tac ((toan ban) or (toan tap))*.