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