Perhaps you should try some spelling variations:
thanh mot » thanh moi, hanh mot, thanh hoa
thanh mat » thanh dat, thanh mau, thanh san
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
duc van » duc va, duc tan, duc manh
v pham » vi pham, d pham
hieu v » hieu va, hieu ve, hieu 2
ma hoi » mai hoi, xa hoi, ma hoa
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: ((tu sach) or (thu hoach)) ky nang ma hoi. hieu v pham duc van ((thanh mat) OR (thanh mot)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky nang ma hoi. hieu v pham duc van ((thanh mat) OR (thanh mot)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu hoach)) ky nang ma hoi. hieu v pham duc van ((thanh mat) OR (thanh mot)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky nang ma hoi. hieu v pham duc van ((thanh mat) OR (thanh mot)) cua te*.