Perhaps you should try some spelling variations:
toan thanh » tran thanh, hoan thanh, toan thang
tan thanh » tran thanh, tang thanh, ban thanh
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu van
hai cua » thai cua, dai cua, hoi cua
cam duc » cam xuc, cao duc, pham duc
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam duc ((tan thanh) or (toan thanh)) hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam duc ((tan thanh) OR (toan thanh)) hai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam duc ((tan thanh) or (toan thanh)) hai cua te".
• Adding a wildcard symbol may retrieve word variants: su sac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam duc ((tan thanh) or (toan thanh)) hai cua te*.