Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thien van » thi van
cau nuoc » cap nuoc, cac nuoc, dau nuoc
van nang » van quang, van ban, van dong
than cua » nhan cua, thai cua, ban cua
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
van cau » van dau, van hau, van chat
va dang » van dang, va nang, va lang
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 sach ky ((nang xa) or (nang x)) hoi. thien van cau nuoc ((va dang) or (van nang)) than cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky ((nang xa) OR (nang x)) hoi. thien van cau nuoc ((va dang) OR (van nang)) than cua te.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky ((nang xa) or (nang x)) hoi. thien van cau nuoc ((va dang) or (van nang)) than cua te*.