Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon hang ca snippets" » "chon khang ca snippets", "cho hang ca snippets", "chon chung ca snippets", "chon hang va snippets", "chon nang cao snippets", "chon hang tai 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: (((("chon hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.