Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phoi dac cho snippets" » "phoi mac cho snippets", "phoi tac cho snippets", "hoi dap cho snippets", "phoi day cho snippets", "phoi danh cho 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: (((("phoi dac cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phoi dac cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phoi dac cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phoi dac cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.