Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chap kinh do snippets" » "nhap kinh do snippets", "cap kinh do snippets", "than kinh do snippets", "chap kinh co snippets", "chap trinh do snippets", "chap kinh hoc 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: (((("chap kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chap kinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap kinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap kinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.