Perhaps you should try some spelling variations:
khoa thuoc » khong thuoc, khoa hoc, nha thuoc
thuoc hieu » thuc hieu, thuoc dieu, thuong hieu
cac khoa » cac khoan, cac khoi, dac khoa
hieu khi » hieu chi, thieu nhi, khien khi
hoc cac » hoc cao
khi cua » chi cua, thai cua
bo hon » bo ion, ro hon, bo thong
bo ho » bao ho, mo ho, co ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac khoa thuoc hieu khi cua ets : nhung ((bo ho) OR (bo hon)) voi đai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc cac khoa thuoc hieu khi cua ets : nhung ((bo ho) OR (bo hon)) voi đai".
• Adding a wildcard symbol may retrieve word variants: hoc cac khoa thuoc hieu khi cua ets : nhung ((bo ho) OR (bo hon)) voi đai*.