Perhaps you should try some spelling variations:
giao thuoc » gia thuoc, gia thuc, cao thuoc
thuoc khoa » thuc khoa, huoc khoa, thuoc khong
quang bao » quang ban, quang nam, quang lam
quang cao » nang cao, quang nam
anh giao » nang giao, minh giao, danh gia
khoa hoc » hoa hoc
te anh » te danh, tue anh, le anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: te anh giao thuoc khoa hoc - stem. stem ((quang bao) OR (quang cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te anh giao thuoc khoa hoc - stem. stem ((quang bao) OR (quang cao))".
• Adding a wildcard symbol may retrieve word variants: te anh giao thuoc khoa hoc - stem. stem ((quang bao) OR (quang cao))*.