Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri dong voi snippets" » "tri cong voi snippets", "thi dong voi snippets", "tai dong voi snippets", "tri dong von snippets", "tri dong hoi snippets", "tri dong doi 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: (((("tri dong voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri dong voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri dong voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri dong voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.