Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"truan doi he snippets" » "truan doi code snippets", "truyen doi he snippets", "quan doi he snippets", "khuan doi he snippets", "truan do he snippets", "truan doi de snippets", "truan moi he 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: (((("truan doi he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan doi he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( truan doi he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doi he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.