Perhaps you should try some spelling variations:
toc cham » toc thai
luu tre » luu tru, cuu tre, luy tre
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
lang ha » long ha
dang ha » dong ha, dung ha, tang ha
sai ky » sac ky
vi luu » vi lua
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky ((dang ha) OR (lang ha)) hoi. hieu ((ve cham) or (toc cham)) hoc va danh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((dang ha) OR (lang ha)) hoi. hieu ((ve cham) OR (toc cham)) hoc va danh vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((dang ha) OR (lang ha)) hoi. hieu ((ve cham) or (toc cham)) hoc va danh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((dang ha) OR (lang ha)) hoi. hieu ((ve cham) or (toc cham)) hoc va danh vi luu tre*.