Perhaps you should try some spelling variations:
"phi voi chon snippets" » "phi voi code snippets", "phi voi con snippets", "phi voi phong snippets", "phi voi chien snippets", "pho voi chon snippets", "phi loi chon snippets", "chi voi chon snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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 ("phi voi chon snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phi voi chon snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phi voi chon snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phi voi chon snippets"))) or ("locating bug core snippets"))*.