Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho thanh he snippets" » "cho phan he snippets", "tro thanh he snippets", "cuu thanh he snippets", "cho thanh hue snippets", "cho thanh ha snippets", "cho thanh ve 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: (((("cho thanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho thanh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho thanh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho thanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.