Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
trinh ve » trinh he, trinh va, trinh vi
va trinh » van trinh, va tinh, lap trinh
vien dai » hien dai
vien da » hien dai
nang ma » tang ma, sang ma, nang cao
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa
ve cua » le cua, de cua, te cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) ky nang ma hoi. nhieu ((vien da) or (vien dai)) duc va trinh ve cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ky nang ma hoi. nhieu ((vien da) OR (vien dai)) duc va trinh ve cua te.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ky nang ma hoi. nhieu ((vien da) or (vien dai)) duc va trinh ve cua te*.