Perhaps you should try some spelling variations:
thanh nghia » thanh nghi, thanh nga, thanh nha
thuc nghiem » trac nghiem
cac thanh » bac thanh, cach nhanh, ban thanh
thuc cach » thuoc sach, truoc cach, thuc hanh
nghia do » nghia duy, nghia dan, nghia lon
thu cach » thu canh, tu cach, tho cach
nghiem d » nghiem de, nghiem do, nghiem _
do hoc » co hoc, do hoa, du hoc
d hoc » du hoc, ad hoc, de hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cac thanh nghia do hoc ) or ( ((thu cach) OR (thuc cach)) thuc nghiem d hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cac thanh nghia do hoc ) OR ( ((thu cach) OR (thuc cach)) thuc nghiem d hoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu cac thanh nghia do hoc ) or ( ((thu cach) OR (thuc cach)) thuc nghiem d hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( tu cac thanh nghia do hoc ) or ( ((thu cach) OR (thuc cach)) thuc nghiem d hoc ))*.