Perhaps you should try some spelling variations:
thien van » thi van
su triet » su viet, su tien, ve triet
van hanh » van thanh, van anh, van ban
dang xay » dang van, van xay
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xay hoi » xa hoi, tay hoi, cay phoi
ty dang » ty xang, ky dang, ty hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty dang xay hoi. thien van nhan luc ((van hanh) or (ban hanh)) va ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty dang xay hoi. thien van nhan luc ((van hanh) OR (ban hanh)) va ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty dang xay hoi. thien van nhan luc ((van hanh) or (ban hanh)) va ((cua tre) or (su triet))*.