Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc yen cac snippets" » "ngoc huyen cac snippets", "ngoc duyen cac snippets", "ngoc quyen cac snippets", "ngoc yen bac snippets", "ngoc den cac snippets", "ngoc yen lac 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: (((("ngoc yen cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngoc yen cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc yen cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc yen cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.