Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham bai long snippets" » "ham hai long snippets", "ham bai lon snippets", "ham lai long snippets", "pham bao long snippets", "cham lai long snippets", "ham khai long 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 bai long 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 bai long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham bai long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham bai long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.