Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
sang xa » song xa, lang xa, mang xa
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
cam loc » cam lo
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va

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 ma)) hoi. hieu ve cam loc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((sang xa) OR (sang ma)) hoi. hieu ve cam loc va hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((sang xa) or (sang ma)) hoi. hieu ve cam loc va hanh dai cua tre*.