Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai van ho snippets" » "dao van ho snippets", "dai han ho snippets", "dai va ho snippets", "dai van hoa snippets", "dai van hoc snippets", "dai van hoe 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: (((("dai van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai van ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai van ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.