Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim hoc can snippets" » "kim ho can snippets", "kim hoa can snippets", "kim phuoc can snippets", "kim hoc dan snippets", "kim hoc cao snippets", "kim hoc cac 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: (((("kim hoc 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: (((("kim hoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim hoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim hoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.