Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
hanh tai » thanh tai, hang tai, han tai
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
duc van » duc va, duc tan, duc manh
cuc tre » duc tre, cua tre, cuu tre
so sac » so sach, so dac
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, va cam
o hai » co hai, so hai, o lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang o hai. hieu ve cam ((((thuc van) or (xuc ban))) or (duc van)) hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang o hai. hieu ve cam ((((thuc van) OR (xuc ban))) OR (duc van)) hanh tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: so sac ky nang o hai. hieu ve cam ((((thuc van) or (xuc ban))) or (duc van)) hanh tai cuc tre*.