Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"canh van cau snippets" » "anh van cau snippets", "can van cau snippets", "cach van cau snippets", "canh van dau snippets", "canh van hau snippets", "canh van chat 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: (((("canh van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("canh van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.