Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kich hoi cua snippets" » "kich noi cua snippets", "dich hoc cua snippets", "kinh hoc cua snippets", "kich hoi chuc 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: (((("kich hoi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kich hoi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kich hoi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kich hoi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.