Perhaps you should try some spelling variations:
van trinh » van thinh, van tinh, va trinh
dan trinh » dan tinh, hanh trinh, xuan trinh
giau cua » gian cua, gia cua, dieu cua
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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) or (hoc sinh)) ky nang ma hoi. hieu ve cac xuc ((dan trinh) OR (van trinh)) giau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sinh)) ky nang ma hoi. hieu ve cac xuc ((dan trinh) OR (van trinh)) giau cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (hoc sinh)) ky nang ma hoi. hieu ve cac xuc ((dan trinh) OR (van trinh)) giau cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sinh)) ky nang ma hoi. hieu ve cac xuc ((dan trinh) OR (van trinh)) giau cua tre*.