Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon vu cham snippets" » "cuong vo cham snippets", "cuong ve cham snippets", "cuong tu cham snippets", "cuon va cham snippets", "cuon vu kham snippets", "cuon tu cham 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: (((("cuon vu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon vu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon vu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon vu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.