Perhaps you should try some spelling variations:
van thiet » va thiet, dan thiet, can thiet
chat xuc » chat huu, cam xuc, chat cua
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
sach ty » sach y, sach tu, sach thu
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 hoi. hieu ve ((chat xuc) or (chao xu)) ((va hanh) OR (va thanh)) va van thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang xa hoi. hieu ve ((chat xuc) OR (chao xu)) ((va hanh) OR (va thanh)) va van thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang xa hoi. hieu ve ((chat xuc) or (chao xu)) ((va hanh) OR (va thanh)) va van thiet".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang xa hoi. hieu ve ((chat xuc) or (chao xu)) ((va hanh) OR (va thanh)) va van thiet*.