Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
trinh dien » tinh dien, trinh tin
lanh kinh » anh kinh, lanh dinh, thanh kinh
nghiem tu » nghiep tu, nghiem su, nghiem te
dien duoc » bien duoc, dien duc, dien cuc
duoc hoc » quoc hoi
tu sach » thu sach, su sach, te sach
tu hoc » te hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuat lanh kinh nghiem tu hoc ) or ( ((tu sach) or (thu hoach)) trinh dien duoc hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuat lanh kinh nghiem tu hoc ) OR ( ((tu sach) OR (thu hoach)) trinh dien duoc hoc )).
• Adding a wildcard symbol may retrieve word variants: (( thuat lanh kinh nghiem tu hoc ) or ( ((tu sach) or (thu hoach)) trinh dien duoc hoc ))*.