Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran huu hoi snippets" » "tran duc hoi snippets", "tran huu ho snippets", "tran huu hai snippets", "tran cuu hoi 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 ("tran huu 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 ("tran huu hoi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tran huu hoi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tran huu hoi snippets"))) or ("locating bug code snippets"))*.