Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham khai he snippets" » "tham khao he snippets", "pham khac he snippets", "than khai he snippets", "ham kai he snippets", "ham khoi he snippets", "ham khai pha 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 khai he 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 khai he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham khai he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham khai he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.