Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lang van che snippets" » "lang van code snippets", "dang van che snippets", "tang van che snippets", "hoang van che snippets", "lang han che snippets", "lang van chi snippets", "lang van cho 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: (((("lang 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: (((("lang van che snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lang van che snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang van che snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.