Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thanh le » thinh le, thanh ve, thanh de
dang xay » dang van, van xay
truc van » truc va, thuc van, truc ban
truc dan » thuc dan, truc ban, truc dai
tuc dan » thuc dan, thuc day, tung dan
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
ve cam » ve cham, ve cac, va cam
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky dang xay hoi. hieu ve cam ((tuc dan) or (((truc dan) or (truc van)))) thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky dang xay hoi. hieu ve cam ((tuc dan) OR (((truc dan) OR (truc van)))) thanh le cua vat.
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang xay hoi. hieu ve cam ((tuc dan) or (((truc dan) or (truc van)))) thanh le cua vat*.