Perhaps you should try some spelling variations:
sang tao » hang tai
hanh dai » hanh tai, hanh dao, vanh dai
bui khac » bui nhat
luat tuc » luat thue
cac luat » cap luat, cac xuat, cac thuat
hieu cac » hieu luc, hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vu khac » vu kham, vu khanh
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu khac) OR (bui khac)) le ((nang xa) or (sang tao)) hoi. hieu cac luat tuc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khac) OR (bui khac)) le ((nang xa) OR (sang tao)) hoi. hieu cac luat tuc va hanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu khac) OR (bui khac)) le ((nang xa) or (sang tao)) hoi. hieu cac luat tuc va hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu khac) OR (bui khac)) le ((nang xa) or (sang tao)) hoi. hieu cac luat tuc va hanh dai cua tre*.