Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi tap chon snippets" » "hoi tap cho snippets", "hoi tac chong snippets", "hoi tap hop snippets", "hoi dap chon snippets", "hoc tap chon snippets", "hoi tai chon 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: (((("hoi tap chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi tap chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi tap chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi tap chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.