Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phap cu snippets" » "theo phap cu snippets", "thi hai cu snippets", "thi ha cu snippets", "thi phap cau snippets", "thi phap chu snippets", "thi phap tu 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: (((("thi phap cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi phap cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phap cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phap cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.