Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung van hoi snippets" » "phung van hoi snippets", "nhung van hoi snippets", "dung van hoi snippets", "hung van choi snippets", "hung van hoai snippets", "hung van khoi 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: (((("hung van hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung van hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung van hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung van hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.