Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
nhan tai » hang tai, van tai, toan tai
va nhan » van nhan, ca nhan, va phan
nang xa » lang xa, nang ma, mang xa
cua tre » cuu tre, cua triet, dua tren
hieu va » lieu va, hieu qua
lanh ky » hanh ky, nganh ky, thanh ky
cau luc » cau truc, cau phuc
va cau » van cau, va cac, va dau
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: thuat lanh ky ((nang xa) or (nang x)) hoi. hieu va cau luc va nhan tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ky ((nang xa) OR (nang x)) hoi. hieu va cau luc va nhan tai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuat lanh ky ((nang xa) or (nang x)) hoi. hieu va cau luc va nhan tai ((cua tre) or (cua te))*.