Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc trong do snippets" » "luoc trong do snippets", "luu trong do snippets", "cuc trong do snippets", "luc trong doi snippets", "luc trong dao snippets", "luc trong co 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: (((("luc trong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc trong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc trong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc trong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.