Perhaps you should try some spelling variations:
cham luoc » cham soc, khai luoc, kham cuoc
dieu cua » dieu tra
diem cua » dien cua, diem ca, diem chay
van hanh » van thanh, ban hanh, van anh
luoc van » luoc can, luoc va, luc van
va cham » va chat, va tham
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
x hoi » xa hoi, o hoi, x ho

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 ky) or (sach tu)) nang x hoi. hieu va cham luoc van hanh ((diem cua) OR (dieu cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach tu)) nang x hoi. hieu va cham luoc van hanh ((diem cua) OR (dieu cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sach tu)) nang x hoi. hieu va cham luoc van hanh ((diem cua) OR (dieu cua)) tre*".