Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham hat doi snippets" » "ham mat doi snippets", "pham nhat doi snippets", "nham phat doi snippets", "ham hoat doi snippets", "ham thay doi snippets", "ham hang doi 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: (((("ham hat doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham hat doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham hat doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham hat doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.