Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai dao dong snippets" » "hai lao dong snippets", "hai ha dong snippets", "hai bat dong snippets", "hai dan dong snippets", "hat dao dong snippets", "hai dang dong 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: (((("hai dao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai dao dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai dao dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai dao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.