Perhaps you should try some spelling variations:
lang mai » lang dai, lang hai, lang man
cham cuu » cap cuu, chat cua
te sach » toc sach
keo cua » keo sua, kho cua, khoe cua
kem cua » em cua, diem cua
ve hanh » ve thanh, ve canh, va hanh
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
hieu ve » hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky lang » ky nang, ky dang, ky tang
cuu ve » cuu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky lang mai hoi. ((hieu ve) or (hieu va)) cham cuu ve hanh ((kem cua) OR (keo cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang mai hoi. ((hieu ve) OR (hieu va)) cham cuu ve hanh ((kem cua) OR (keo cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang mai hoi. ((hieu ve) or (hieu va)) cham cuu ve hanh ((kem cua) OR (keo cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang mai hoi. ((hieu ve) or (hieu va)) cham cuu ve hanh ((kem cua) OR (keo cua)) tre*.