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