Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
hoc sach » hoc sinh, hoc cac, hoc anh
tao nano » tao nganh, cao nang, tao cao
nano xa » nano va, nano bac, nano cau
dinh ve » dinh ket, dinh van
va dinh » van dinh, va kinh, va tinh
ve cham » va cham, ve chat, vu cham
ve cua » le cua, de cua, te cua
xuc va » duc va, tuc va, luc va
ve cam » ve cac, va cam, ve cai
cua su » qua su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc nhanh)) tao nano xa hoi. hieu ((ve cam) OR (ve cham)) xuc va dinh ve cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) or (hoc nhanh)) tao nano xa hoi. hieu ((ve cam) OR (ve cham)) xuc va dinh ve cua su~".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (hoc nhanh)) tao nano xa hoi. hieu ((ve cam) OR (ve cham)) xuc va dinh ve cua su*.