Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu van cu snippets" » "thuc van cu snippets", "thuy van cu snippets", "tu van cu snippets", "thu van cau snippets", "thu van chu snippets", "thu van 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 van cu 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 van cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu van cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu van cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.