Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so thiet chi snippets" » "so thiet bi snippets", "so thieu nhi snippets", "so trien chi snippets", "soc thiet chi snippets", "hoc thiet chi snippets", "hoa thiet chi 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: (((("so thiet 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: (((("so thiet chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so thiet chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so thiet chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.