Perhaps you should try some spelling variations:
cam luc » cam xuc, cau luc
nano xa » nano bac, nano cau, nano dua
dinh ly » sinh ly, trinh ly, dinh lam
dinh le » dinh ve, dinh ket, thinh le
hieu va » lieu va, hieu qua
sinh y » sinh ly
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh y ((nano xa) or (nano va)) hoi. hieu va cam luc va ((dinh le) OR (dinh ly)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh y ((nano xa) OR (nano va)) hoi. hieu va cam luc va ((dinh le) OR (dinh ly)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sinh y ((nano xa) or (nano va)) hoi. hieu va cam luc va ((dinh le) OR (dinh ly)) cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sinh y ((nano xa) or (nano va)) hoi. hieu va cam luc va ((dinh le) OR (dinh ly)) cua te*.