Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
luoc van » luoc can, luoc va, luc van
cua tre » cua te, cuu tre, cua triet
hanh di » hanh vi, hanh de, hang di
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua
te sac » te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te sach)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) luoc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te sach)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) luoc van hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te sach)) ky nang ma hoi. hieu ((ve cham) OR (vu cham)) luoc van hanh di cua tre*".