Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai pho hoc snippets" » "dai tho hoc snippets", "dan pho hoc snippets", "doi pho hoc snippets", "dai phoi hoc snippets", "dai cho hoc snippets", "dai pho ho 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: (((("dai pho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai pho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai pho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai pho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.