Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat luu chan snippets" » "hat huu chan snippets", "hat luu chat snippets", "hat luu thanh snippets", "chat huu chan snippets", "chat lua chan snippets", "phap luu chan 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: (((("hat luu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat luu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat luu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat luu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.