Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
van hanh » van thanh, ban hanh, van anh
chat huu » pham huu
tu sach » thu sach, su sach, te sach
hien tu » khien tu, dien tu
huu van » cuu van, huu han, luu van
hieu tu » chieu tu, hieu tuc, lieu tu
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
vi cua » vai cua, di 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: ((tu sach) or (thuat lanh)) ky dang xa hoi. ((hieu tu) or (hien tu)) chat huu van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat lanh)) ky dang xa hoi. ((hieu tu) OR (hien tu)) chat huu van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat lanh)) ky dang xa hoi. ((hieu tu) or (hien tu)) chat huu van hanh vi cua te*.