Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung van bo snippets" » "phung van bo snippets", "nhung van bo snippets", "chung han bo snippets", "chung van bao snippets", "chung van bon snippets", "chung can bo 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: (((("chung van bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chung van bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung van bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung van bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.