Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cha le doan snippets" » "cha le code snippets", "cha le dan snippets", "cha ly doanh snippets", "cha le hoang snippets", "cha me doan snippets", "ha le doan snippets", "cua le doan snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cha le doan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cha le doan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cha le doan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cha le doan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.