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