Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong ban voi snippets" » "dong ban code snippets", "dong bang voi snippets", "dong san voi snippets", "dong bac voi snippets", "dong ban moi snippets", "dong ba voi snippets", "dong ban noi 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: (((("dong ban voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong ban voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong ban voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ban voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.