Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai lieu voi snippets" » "tai lieu voi snippets", "da lieu voi snippets", "dai bieu voi snippets", "dai lieu boi snippets", "dai lieu va snippets", "dai lieu 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: (((("dai lieu 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: (((("dai lieu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai lieu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai lieu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.