Perhaps you should try some spelling variations:
cham loc » cham soc, chon loc, cham o
va trien » va truyen, va thiet, va tuyen
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
te sac » te sach, te cac, te san
te ban » te bao
loc va » hoc va, luc va
de va » de van, te va, ke va

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 ban)) ky lang xa hoi. hieu ve cham loc va hanh de va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te ban)) ky lang xa hoi. hieu ve cham loc va hanh de va trien.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te ban)) ky lang xa hoi. hieu ve cham loc va hanh de va trien*.