Perhaps you should try some spelling variations:
lam chat » luan chat, cao chat, ly chat
toc sac » toc sach, toc san, hoc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
lam cua » nam cua
sac ky » cac ky, sai ky
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: toc sac ky nang x hoi. hieu ve cham soc ((gia thanh) or (va danh)) ((lam cua) OR (lam chat)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang x hoi. hieu ve cham soc ((gia thanh) OR (va danh)) ((lam cua) OR (lam chat)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang x hoi. hieu ve cham soc ((gia thanh) or (va danh)) ((lam cua) OR (lam chat)) tre*".