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