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"
"phi hoc cua snippets" » "phoi hoc cua snippets", "khi hoc cua snippets", "pho hoc cua snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phi hoc cua snippets") or ("python using data snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi hoc cua snippets") OR ("python using data snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( phi hoc cua snippets ) or ( python using data snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoc cua snippets") or ("python using data snippets"))) or ("locating bugs code snippets"))*.