Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong tinh ca snippets" » "dong tinh code snippets", "dong kinh ca snippets", "dong tin ca snippets", "cong tinh ca snippets", "dong tinh cao snippets", "dong tinh cua snippets", "dong tinh va 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 tinh ca 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 tinh ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong tinh ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tinh ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.