Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
va hanh » van hanh, va thanh, va danh
sang xa » song xa, lang xa, sang ma
hieu ve » hieu va, hieu van
cam tu » cam thu, nam tu, dam tu
cam ky » cao ky
ve cam » ve cham, ve cac, va cam

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

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