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