Perhaps you should try some spelling variations:
national training » vocational training, national planning, occupational training
training cnns » training can, training costs, training camhs
cnns hong » can hong
hong hai » shang hai, zhong tai, dang hai
nan yan » nan ya, wang yan, qian yan
ya a » a a, ye a, yu a
y a » y la
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nan yan) or (dong sin)) ((ya a) or (y a)) national training cnns hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nan yan) OR (dong sin)) ((ya a) OR (y a)) national training cnns hong hai ;*.