Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khai van chi snippets" » "thai van chi snippets", "hai van chi snippets", "khao van chi snippets", "khai van chien snippets", "khai luan chi snippets", "khai van chat 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: (((("khai van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khai van chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai van chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.