Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu quoc du snippets" » "phu quoc du snippets", "tru quoc du snippets", "thuat quoc du snippets", "thu quoc su snippets", "thu quoc dung snippets", "thu buoc dau 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 quoc du 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 quoc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu quoc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu quoc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.