Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu dong son snippets" » "khu cong son snippets", "chu dong son snippets", "khi dong son snippets", "khu dong von snippets", "khu dong san snippets", "khu hoang son 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: (((("khu dong son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu dong son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu dong son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu dong son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.