Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho dong che snippets" » "cho cong che snippets", "co dong che snippets", "pho dong che snippets", "cho dong chen snippets", "cho duong che snippets", "cho dong cho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("cho dong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho dong che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho dong che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho dong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.