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