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