Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac mong du snippets" » "cac cong du snippets", "cac mon du snippets", "ca mong du snippets", "cac muong du snippets", "cac mong do snippets", "cac song du 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: (((("cac mong du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac mong du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac mong du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac mong du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.