Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri van chi snippets" » "thi van chi snippets", "tri va chi snippets", "trinh van chi snippets", "tri van chien snippets", "tri luan chi snippets", "tri 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: (((("tri 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: (((("tri van chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri van chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri van chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.