Perhaps you should try some spelling variations:
sang tao » hang tai
hanh lai » hanh lam, hanh tai, thanh lap
cua tre » cua te, cuu tre, cua triet
sang xa » song xa, lang xa, sang ma
lai cua » dai cua, hai cua, lai chau
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
cam lo » nam lo, cam ly, cam o
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

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