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