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