Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai vang cua snippets" » "lai van cua snippets", "lai yang cua snippets", "lai chang cua snippets", "lai mang cua snippets", "lai hang cua snippets", "lai tang cua 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: (((("lai vang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai vang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai vang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai vang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.