Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua nang du snippets" » "chuc nang du snippets", "chua xang du snippets", "kha nang du snippets", "chua nang tu snippets", "chua nang luc snippets", "chua nang doc 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: (((("chua nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chua nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.