Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai van loc snippets" » "thai van loc snippets", "ha van loc snippets", "hai tan loc snippets", "hai van hoc snippets", "hai van loi snippets", "hai van ngoc 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: (((("hai van loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai van loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai van loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai van loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.