Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"pha hoc vinh snippets" » "pha hoc sinh snippets", "pha hoc kinh snippets", "pha hoc chinh snippets", "phap hoc vinh snippets", "phau hoc vinh snippets", "nha hoc vinh snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("pha hoc vinh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"pha hoc vinh snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( pha hoc vinh snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha hoc vinh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.