Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
cham luc » cham soc, nhan luc, cham cuu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
luc ban » duc ban, cuc ban, luc bat
vai cua » dai cua, hai cua, lai cua
ma hoi » xa hoi, ma hoa, me hoi

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 ky sang ((ma hoi) OR (mai hoi)). hieu ve cham luc ban thanh vai cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang ((ma hoi) OR (mai hoi)). hieu ve cham luc ban thanh vai cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ((ma hoi) OR (mai hoi)). hieu ve cham luc ban thanh vai cua vat*.