Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mau thu canh snippets" » "mau thuc hanh snippets", "mau thu cong snippets", "mau thu ban snippets", "mau thuc canh snippets", "ma thu canh snippets", "cau thu canh 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: (((("mau thu canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mau thu canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mau thu canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mau thu canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.