Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuy van ca snippets" » "thuy san ca snippets", "thuc van ca snippets", "chu van ca snippets", "thuy van cau snippets", "thuy van cua snippets", "thuy dan ca 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: (((("thuy van ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuy van ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuy van ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuy van ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.