Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
cam truc » cau truc, nam truc, lam truoc
hieu ve » hieu va, hieu van
vai cuu » vai cua
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
tu sach » thu sach, su sach, te sach
ty hang » ly hang, thi hang, thu hang
ty nang » ky nang, ly nang, ty nong
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty nang) or (((ty hang) OR (ty xang)))) xa hoi. hieu ve cam truc va danh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (((ty hang) OR (ty xang)))) xa hoi. hieu ve cam truc va danh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) or (((ty hang) OR (ty xang)))) xa hoi. hieu ve cam truc va danh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) or (((ty hang) OR (ty xang)))) xa hoi. hieu ve cam truc va danh vai cuu tre*.