Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoat den cua snippets" » "hoat dong cua snippets", "hoat doi cua snippets", "hoat van cua snippets", "hoat dien cua snippets", "hoat de cua snippets", "hoat dan 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: (((("hoat den 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: (((("hoat den cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoat den cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoat den cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.