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