Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
danh hai » dang hai, lanh hai, manh hai
sang mai » sang ma, sang tai, lang mai
dat duoc » dat nuoc, da duoc, luat duoc
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, va hanh
mai hoi » mai khoi, dai hoi, lai hoi
ky sang » ky nang, ky dang, ky tang
te cac » tu cac, ve cac, te cao
te sac » te sach, te san

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) or (te cac)) ky sang mai hoi. hieu van ((dat duoc) or (cam xuc)) va danh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te cac)) ky sang mai hoi. hieu van ((dat duoc) OR (cam xuc)) va danh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te cac)) ky sang mai hoi. hieu van ((dat duoc) or (cam xuc)) va danh hai cua tre*.