Perhaps you should try some spelling variations:
dan trinh » dan tinh, van trinh, hanh trinh
gian cua » gian xu, ban cua
hoc sach » hoc sinh, hoc cac, hoc anh
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
via cua » gia cua, giau cua, rija cua
xuc dan » tuc dan, duc dan, xuc ban
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 sach)) ky nang ma hoi. hieu ve cac xuc dan trinh ((via cua) OR (gian cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sach)) ky nang ma hoi. hieu ve cac xuc dan trinh ((via cua) OR (gian cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (hoc sach)) ky nang ma hoi. hieu ve cac xuc dan trinh ((via cua) OR (gian cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sach)) ky nang ma hoi. hieu ve cac xuc dan trinh ((via cua) OR (gian cua)) tre*.