Perhaps you should try some spelling variations:
van thiet » va thiet, dan thiet, can thiet
chat xuc » chat huu, cam xuc, chao xu
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty ((nang xa) OR (lang xa)) hoi. hieu ve chat xuc va hanh va van thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty ((nang xa) OR (lang xa)) hoi. hieu ve chat xuc va hanh va van thiet".
• Adding a wildcard symbol may retrieve word variants: vu sach ty ((nang xa) OR (lang xa)) hoi. hieu ve chat xuc va hanh va van thiet*.