Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tao van du snippets" » "tao van code snippets", "thao van du snippets", "tao va du snippets", "dao van du snippets", "tao van duy snippets", "tao van dau snippets", "tao 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: (((("tao 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: (((("tao van du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tao van du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao van du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.