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