Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets", "python using data slippers"
"van hau duc snippets" » "van ha duc snippets", "van hai duc snippets", "van dau duc snippets", "van huu duc snippets", "van pham duc snippets", "van phan duc snippets", "van hau duc slippers"

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: (((("python using data snippets") or ("van hau duc snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using data snippets") OR ("van hau duc snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( python using data snippets ) or ( van hau duc snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("van hau duc snippets"))) or ("locating bugs code snippets"))*.