Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"khu vu tong snippets" » "khu vu trong snippets", "khu vu cong snippets", "khu vu hong snippets", "khu vuc tong snippets", "khu du tong snippets", "khu va tong 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: (((("khu vu tong snippets") or ("python using data snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu vu tong snippets") OR ("python using data snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( khu vu tong snippets ) or ( python using data snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu vu tong snippets") or ("python using data snippets"))) or ("locating bugs code snippets"))*.