Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc hai moi snippets" » "hoc hai moi snippets", "do hai moi snippets", "duc hai moi snippets", "doc hai muoi snippets", "doc dai moi snippets", "doc nhat moi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("doc hai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc hai moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc hai moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.