Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ha hong snippets" » "van ha dong snippets", "van ha long snippets", "van ha cong snippets", "van hoa hong snippets", "van chat hong snippets", "van hanh hong 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: (((("van ha hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ha hong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ha hong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ha hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.