Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha vao hoi snippets" » "pha van hoi snippets", "pham van hoi snippets", "phan van hoi snippets", "pha va hoi snippets", "pha tao 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: (((("pha vao hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha vao hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha vao hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha vao hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.