Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
dang xay » dang van, van xay
phat duc » pham duc, phan duc, phan duoc
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, te sach
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
ve phat » va phat, te phat, de phat
hanh ki » hanh vi, hanh ky, hanh kien
su viet » so viet
y dang » ky dang, 2 dang, _ dang
ki su » ky su

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 y dang xay hoi. hieu ve phat duc manh hanh ki su viet~.
• Adding a wildcard symbol may retrieve word variants: tu sach y dang xay hoi. hieu ve phat duc manh hanh ki su viet*.