Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu tai cua snippets" » "tu tai cua snippets", "tru tai cua snippets", "thu hai cua snippets", "thu thai cua snippets", "thu tai cuc snippets", "thu tri 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: (((("thu tai 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: (((("thu tai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu tai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu tai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.