Perhaps you should try some spelling variations:
hieu thien » hieu hien, chieu chien, dieu khien
thien hach » thien thanh, hien hanh
vu khach » vu khanh, vu khac, vay khach
khach ky » hanh ky, thanh ky
danh doi » danh di, thanh doi, dung doi
nang xa » nang x, lang xa, nang ma
tuoc va » thuoc va, duoc va, tuc va
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ky nang xa hoi. hieu thien hach ((tuoc va) or (nuoc va)) danh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky nang xa hoi. hieu thien hach ((tuoc va) OR (nuoc va)) danh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu khach ky nang xa hoi. hieu thien hach ((tuoc va) or (nuoc va)) danh doi cua tre*.