Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
cam duc » cam xuc, cao duc, pham duc
cua te » cua tu
sac ky » cac ky

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

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