Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
thai ky » thoi ky, than ky, thai ly
te thai » te tai, te thi, te than
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
va hanh » van hanh, va thanh, va danh
ve va » ve van, te va, vu va
le va » le van, te va, ly va
ke va » te 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 thai ky lang xa hoi. hieu ve cham duc va hanh ((((ve va) or (le va))) or (ke va)) trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te thai ky lang xa hoi. hieu ve cham duc va hanh ((((ve va) OR (le va))) OR (ke va)) trien.
• Adding a wildcard symbol may retrieve word variants: te thai ky lang xa hoi. hieu ve cham duc va hanh ((((ve va) or (le va))) or (ke va)) trien*.