Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac cheo cua snippets" » "dac cho cua snippets", "ban cheo cua snippets", "cac che cua snippets", "dac chuoi cua snippets", "dac co cua snippets", "dac chat 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: (((("dac cheo cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac cheo cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac cheo cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac cheo cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.