Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
cua tre » cua te, cuu tre, cua triet
lai cua » dai cua, hai cua, lai chau
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
dan lai » dan loai, dan lap, dan lat
cam duc » cao duc, pham duc, nam duoc
va dan » ca dan, va dao, va dau
te cac » ve cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (tu cac)) ky sang mai hoi. hieu ve ((cam duc) or (cam xuc)) va dan lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (tu cac)) ky sang mai hoi. hieu ve ((cam duc) OR (cam xuc)) va dan lai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (tu cac)) ky sang mai hoi. hieu ve ((cam duc) or (cam xuc)) va dan lai cua tre*.