Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"rac tiem can snippets" » "dac diem can snippets", "tac kiem can snippets", "cac diem can snippets", "rac tiep can snippets", "rac tiem nang snippets", "rac dieu can 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: (((("rac tiem can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("rac tiem can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( rac tiem can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("rac tiem can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.