Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chiem vi can snippets" » "nghiem vi can snippets", "chinh vi can snippets", "nhiem va can snippets", "chiem voi can snippets", "chiem vi van snippets", "chiem i can 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: (((("chiem vi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chiem vi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chiem vi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chiem vi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.