Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac tan hoi snippets" » "cac dan hoi snippets", "cac van hoi snippets", "cac ban hoi snippets", "cac tao hoi snippets", "cac tay hoi 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: (((("cac tan 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: (((("cac tan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac tan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac tan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.