Perhaps you should try some spelling variations:
danh thai » anh thai, dang thai, dinh thai
thai cuu » thai cua, tai cuc, thi cuc
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo

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 ((van bac) OR (van ban)) duc va danh thai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang xa hoi. hieu ((van bac) OR (van ban)) duc va danh thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang xa hoi. hieu ((van bac) OR (van ban)) duc va danh thai cuu tre*.