Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mem dieu can snippets" » "mem diet can snippets", "diem dieu can snippets", "he dieu can snippets", "mem dieu hanh snippets", "mem tiep can snippets", "mem dieu cua 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: (((("mem dieu 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: (((("mem dieu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mem dieu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mem dieu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.