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