Perhaps you should try some spelling variations:
van tuan » van quan, van ban, anh tuan
hieu ve » hieu va, hieu van
tuan ve » tuan le, quan ve, luan ve
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
lai hoi » lai hoa, lai roi, tai hoi
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, mai doi, mai hoa
cua duc » cua tuc, cua nuoc, cua quoc
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((((mai hoi) OR (dai hoi))) or (lai hoi)). hieu ve cac xuc van tuan ve cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((((mai hoi) OR (dai hoi))) OR (lai hoi)). hieu ve cac xuc van tuan ve cua duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((((mai hoi) OR (dai hoi))) or (lai hoi)). hieu ve cac xuc van tuan ve cua duc".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((((mai hoi) OR (dai hoi))) or (lai hoi)). hieu ve cac xuc van tuan ve cua duc*.