Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cho van do snippets" » "cho van code snippets", "chao van do snippets", "chon van do snippets", "cho vay do snippets", "cho van dao snippets", "cho van de snippets", "cho van du 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: (((("cho van do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho van do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cho van do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho van do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.