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